Shared Flashcard Set

Details

Z Ob/Gyn
Ob/Gyn Clerkship
272
Medical
Post-Graduate
03/20/2013

Additional Medical Flashcards

 


 

Cards

Term
When should a female patient start taking folate supplements?
Definition
  • women of reproductive age should take a daily 400μg (0.4 mg) supplement.
  • adequate levels are especially important prior to pregnancy and during the 1st four weeks of fetal development.
  • ↓ fatal MIs and fatal coronary artery events.
  • if there is a prior hx of fetal neural tube defects supplement w/ 4 mg/day.

apgo U1T7, U2T10

Term
When should breast cancer screening be initiated?
Definition
  • biennial mammograms starting at age 50; USPSTF.
  • yearly at age 40 (American Cancer Society & ACOG)

U1T7 q. 2

Term
What factors suggest an ↑ risk for breast cancer?
Definition
  • first-degree relative with postmenopausal BC.
  • combination of 1st degree and second degree relatives on the same side of the family dx with breast and ovarian cancer (one cancer type per person) ↑ of BRCA mutation in non-Ashkenazi women.
  • screen with mammogram.

U1T7 q. 3

Term
What is the efficacy of certain contraceptives?
Definition
  • < 1% pregnancy rate - Depo-Provera
  • 3-5% - oral contraceptive
  • 12% - condom

U1T7 q. 5

Term
What are the risk factors for osteoporosis?
Definition
  • early menopause, glucocorticoid thx, sedentary lifestyle, etOH consumption, hyperthryoidism, hyperPTH, anticonvulsant thx, vit D def, fam hx of early or severe osteoporosis, chronic liver disease, or renal disease.
  • bone density scan for women w/ no pre-existing risk factors at age 65 (DEXA scan).

U1T7 q. 6

Term
What changes occur to the pregnant woman's respiratory system?
Definition
  • upper displacement of diaphragm by 4 cm.
  • TLC ↓ only slightly b/c of compensatory a/p widening of chest.
  • Respiratory rate does NOT change; however, TV is ↑ → ↑ minute ventilation → respiratory alkalosis.
  • minute ventilation = RR x TV

U2T8 q. 2

Term
When a molar pregnancy is suspected what screening test should be performed?
Definition
  • CXR - lungs are the most common site of metastatic disease in pts w/ gestational trophoblastic disease.
  • w/ a complete mole → u/s sound will reveal a heterogenous cystic tissue (snowstorm pattern from multiple hydropic villi).

U2T8 q. 9

 

Term
What effect does pregnancy have on thyroid hormone levels?
Definition
  • ↑ estrogen → ↑ thyroid binding globulin → ↓ free T4 (thyroxine) → ↑ TSH → normal levels of free T4, but ↑ total thyroxine.

U2T8 q. 10

Term
What are the recommendations for weight gain during pregnancy?
Definition
  • underweight: BMI < 18.5, gain 28-40 lbs
  • normal: BMI 18.5-24.9, gain 25-35 lbs
  • overweight: BMI 25-29.9, gain 15-25 lbs
  • obese: BMI > 30, gain 11-20 lbs
  • majority of weight gain occurs during 2nd half of pregnancy.
  • adequate weight gain in first 20-24 weeks is especially important in multiton pregnancies → ↓ risk of preterm infants (early weight gain ↑ placental development; 24 lbs by 24 weeks is recommended)

U2T8, U2T20

Term
What are tocolytics?
Definition
  • medications used to suppress premature labor/contractions (β2-agonists-terbutaline or ritodrine, oxytocin antagonists, CCBs-nifedipine).
  • use of β2-agonists ↑ susceptibility to pulmonary edema b/c plasma osmolality is ↓ & SVR is ↓ during pregnancy.
  • women with chorioamnionitis are also more likely to develop pulmonary edema.
  • abx can be used to prolong latency period by approx. 5-7 days, as well as ↓ incidence of maternal amnionitis & neonatal sepsis.

U2T8, T25

Term
What is the risk of fetal loss associated with chorionic villus sampling?
Definition
  • approx. 1%
  • performed during weeks 10-12 of gestation.
  • chorionic frondosum is sampled.
  • CVS < 10 weeks associated w/ rare limb abnormalities.
  • amniocentesis fetal loss risk: 0.5%; performed after 15 weeks (FYI-good for dx fragile-X).

U2T9, T32

Term
What marker is used to screen for Down syndrome during the first trimester?
Definition
  • PAPP A (pregnancy associated plasma protein A) + nuchal translucency + β-hCG; aka combined test.
  • triple screen - β-hCG, AFP, unconjugated estriol
  • add Inhibin A for quad screen → ↑ sensitivity; employed during 2nd trimester (both triple and quad screens).
  • βhCG ↑, AFP ↓, estriol ↓, inhibin A ↑
  • remember: maternal serum AFP is sampled.
  • if screens are (+), further testing should be pursued.

U2T9, U2T10, UW 2569

Term
What risks are associated with gestational diabetes?
Definition
  • shoulder dystocia (difficult passage of shoulder during delivery), metabolic disturbances, preeclampsia, polyhydramnios, fetal macrosomia.
  • intrauterine growth restriction is seen more commonly in women with pre-existing diabetes (longterm diabetes → vascular damage → ureteroplacental insufficiency).
  • infants born to diabetic mothers are at ↑ risk of developing hypoglycemia, polycythemia, hyperbilirubinemia, hypocalcemia, and respiratory distress.

U2T10, T12

Term
What defects are associated with fetal exposure to valproic acid?
Definition
  • neural tube defect is the most common; specifically, lumbar meningomyelocele.
  • cardiac defects, hypospadius, craniosynostosis, limb defects (particularly radial aplasia).
  • case reports: omphalocele and lung hypoplasia.
Term
What is the protocol in a newborn with an HIV+ mother?
Definition
  • start zidovudine (AZT) immediately.
  • azithromycin prophylaxis @ 6 weeks (Pneumocystic jirovecii).
  • HIV testing at 24 hours.
  • for mother start HAART during pregnancy
  • risk of vertical transmission w/o HAART or w/o c-section is 25%.
  • attempt c-section at 38 weeks, before labor or membrane rupture (these ↓ benefit of c-section)

U2T12, T17a, Kap Q0428, Q0426m

Term
What is the danger of administering naloxone to a newborn?
Definition
  • if you are not familiar with the mother's prenatall hx (eg, opiate/heroine use) you can precipitate life-threatening withdrawal.
  • even if respiratory depression 2° to perinatal meds is suspected administer positive pressure ventilation & prepare for intubation; NO naloxone.

U2T12

Term
What are the signs of chorioamnionitis?
Definition
  • aka intra-amniotic infection
  • mom: tender fundus, fever, tachycardia
  • if amniotic fluid is sampled → ↑ IL-6, ↓ glucose
  • foul smell upon delivery is a warning sign that infant can be septic.
  • a septic infant will appear pale, lethargic, and be febrile.
  • tx: IV abx and prompt delivery (vaginal is fine) regardless of gestational age; abx is most commonly ampicillin + gentamicin.

U2T12, T25, p. 214

Term
What are the different stages of labor?
Definition
  • stage 1: interval btw onset of labor and full cervical dilation; latent phase and active phase (> 3 cm).
  • stage 2: complete cervical dilation through delivery of infant.
  • stage 3: begins after delivery of baby and ends w/ delivery of placent (allow 30 minutes for delivery of placenta; then proceed to manual removal of placenta).
  • stage 4: immediate postpartum period, approx 2 hours after delivery of placenta.
  • stage 1 is divided into latent phase and active phase; active phase is > 3cm; arrest of labor is no Δ in cervical dilation > 2 hours. 

U2T11, Kap m001020

Term
What must be assessed in a newborn if MgSO4 was used?
Definition
  • assess respiratory effort
  • tocolytic mechanism: competes w/ Ca2+ for entry into cell.

U2T24

Term
When is amniocentesis appropriate?
Definition
  • it is not standard of care to offer amniocentesis to a 19-year-old.

U2T12

Term
APGAR
Definition
  1. Heart Rate: absent (0), < 100 (1), ≥ 100 (2)
  2. Respiratory Rate: absent (0), weak/gasping (1), strong cry  (2)
  3. Reflex Irritability: absent (0), grimace (1), cry/pull away/gags (2)
  4. Activity (muscle tone): absent (0), some flexion (1), flexed arms/legs that resist extension (2)
  5. Skin Color: blue all over (0), blue extermities (1), pink (2)
Term
What is the most common cause of postpartum fever?
Definition
  • endometritis (vaginal 2%, caesarean 10-15%)
  • Ddx: UTI, lower genital tract infxn, wound infxn, pulm infxn, thrombophlebitis, mastitis.
  • ↑ risk w/ vaginal: prolonged labor, prolonged rupture of membranes, multiple vaginal exams, internal fetal monitoring, manual removal of placenta, ↓ socioeconomic status.
  • polymicrobial infxn (aerobes & anaerobes); most common - staph and strep. 

U2T13

Term
What adverse effects are associated with bromocriptine?
Definition
  • HTN, stroke, seizure
  • safest method to prevent lactation → breast binding, ice packs, and analgesics.

U2T13

Term
Which symptom can help distinguish postpartum blues  from postpartum depression?
Definition
  • ambivalence toward newborn or sense of incapability of loving her family.

U2T13

Term
What is the most common cause of postpartum hemorrhage (PPH)?
Definition
  • uterine atony
  • PPH is defined as estimated blood loss ≥ 500 ml after vaginal birth or ≥ 1000 ml after caesarean.
  • occurs in 1 in 20 deliveries

U2T13

Term
Sheehan syndrome
Definition
  • significant blood loss (PPH) → anterior pituitary infarction (necrosis).
  • ↓ FSH/LH, ↓TSH, ↓ ACTH
  • slow mental fxn, weight gain, difficulty staying warm, no milk production, hypotension, amenorrhea.
  • tx: estrogen & progesterone replacement + thyroid and adrenal hormones.

U2T13

Term
In delivery what is the primary concern?
Definition
  • fetal status
  • if fetal heart rate cannot be assessed externally → fetal scalp electrode.
  • measuring intrauterine pressure and epidural are 2° concerns.
  • before epidural fetal status must be assessed.

U2T13

Term
Decelerations
Definition
  • early decelerations - head compression (uterus contracts → compression of head → vagal stimulation → ↓ HR).
  • late decelerations - assocated w/ uterine contractions (onset, nadir, recovery of decels occurs after the beginning, peak, and end of contractions); assoc w/ uteroplacental insufficiency.
  • variable decelerations = cord compression; most common decelerations and have no relationship to uterine contractions. breech presentation or oligohydramnios can ↑ risk of cord compression. sustained fetal bradycardia is usually observed; must perform emergent c-section (do not attempt to push cord back, as it can damage it).
  • accelerations are always reassuring and indicate fetal well-being.

U2T11, T26, Kap m000973m

Term
Discomfort in lower abdomen and groin
Definition
  • Braxton-Hicks contractions
  • short duration, less intense than true labor
  • active labor is defined by strong, regular regular contractions that cause cervical Δ.

U2T11

Term
When does an expectant mother need to report to the hospital?
Definition
  1. contractions every 5 minutes for 1 hour
  2. rupture of membranes
  3. fetal movement < 10 per 2 hours
  4. vaginal bleeding

U2T11

Term
Biophysical Profile (BPP)
Definition
  • it is indicated after a non-reactive NST.
  • 2 parts to BPP - non-stress test (NST) and u/s evaluation.
  • NST - record fetal HR for 30 min while looking for accelerations w/ fetal movement; reactive = 2 episodes of ↑ HR of 15 beats/min for duration of at least 15 seconds within a 20 min period.
  • 5 components make up the BPP (1 NST & 4 u/s) for a total of 10 points; ≤ 2 points → labor induction, 4 points → labor induction if > 32 weeks, repeat test same day if < 32 weeks & deliver if < 6 points.
  1. Nonstress test (fetal heart rate)
  2. fetal movement
  3. fetal tone
  4. fetal breathing
  5. amniotic fluid volume (vertical pocket ≤ 2 cm → 0 points, > 2 cm → 2 points). 

wikipedia, U2T26,31, UW 3112

Term
[image]
Definition
  • ischial tuberosity = 0
  • arrest of descent is defined as lack of Δ for 2 hours in nulliparous & 1 hour for multoparous women.
  • add 1 hour if epidural has been administered.

UW 3116

Term
Which hormone is stimulated by suckling?
Definition
  • oxytocin
  • responsible for milk ejection
  • suckling works better than breast pump for stimulating secretion of milk.
  • prolactin → milk production (present throughout pregnancy, but suppressed by estrogen & progesterone).

U2T14

Term
Episiotomies
Definition
  • indicated for instrumental deliveries or protracted arrest of descent.
  • no role for prophylactic epistiotomy
  • midline is better than mediolateral (less pain, easier repair, ↓ blood loss); however, ↑ risk of 3rd and 4th degree tears.

U2T11

Term
Tips of nipples are pink and shiny w/ peeling at the periphery.
Definition
  • candidiasis
  • check infant's oral cavity.

U2T14

Term
What are indications of adequate milk intake in a newborn?
Definition
  • 3-4 stools in 24 hours
  • 6 wet diapers in 24 hours
  • weight gain
  • sounds of swallowing

U2T14

Term
What is the best form of contraception in a breastfeeding mom?
Definition
  • progestin-only are the preferred form of hormonal contraception in lactating mothers.
  • IUD is safe and does not affect milk production.
  • tubal ligation and essure (permanent, non-surgical transcervical sterilization procedure) are not reversible and not recommended in women that may change their mind; even if they state adamantly that they don't ever want children again, reversible is the best alternative.

U2T14, UW3339

Term
What can be done to alleviate engorgement?
Definition
  • engorgement commonly occurs with milk comes in.
  • frequent nursing (1.5-3 hours around the clock)
  • warm shower or warm compresses to enhance milk flow.
  • massaging breast
  • hand expressing milk to soften breast.
  • wearing a good support bra
  • using analgesics 20 min before breast feeding.

U2T14

Term
What are the criteria for dx ectopic pregnancy?
Definition
  • fetal pole visualized outside the uterus on u/s.
  • βhCG > 2000 mIU/ml (discriminatory zone); at this level intrauterine pregnancy should be seen on u/s.
  • or the pt has inappropriately ↑ βhCG level (<50% ↑ in 48 hrs) and has levels which do not fall down following diagnostic dilation & curettage.
  • w/ heterotopic preg, there should be a visible pregnancy in uterus
  • w/ a missed abortion there should also be some visible tissue or a fetal pole w/in the uterus.
  • in a normal pregnancy βhCG ↑ by at least 50% every 48 hours until pregnancy is 42 days old.
  • progesterone < 5 ng/ml suggests an abnormal or extrauterine pregnancy; > 25 ng/ml suggests a healthy pregnancy.

U2T15

Term
What is needed to dx missed abortion, intrauterine pregnancy, and ectopic pregnancy?
Definition
  • serial βhCG levels (at least every 48 hours until a trend is established, usually 3 levels).

U2T15

Term
What is the criteria for terminating an ectopic pregnancy w/ methotrexate?
Definition
  • hemodynamic stability
  • non-ruptured ectopic pregnancy
  • size of ectopic mass < 4 cm w/o fetal HR or
  • < 3.5 cm in presence of fetal HR
  • normal liver enzymes
  • normal renal fxn
  • normal WBC
  • ability of pt to f/u rapidly if condition Δ (access to car).

U2T15

Term
  1. threatened abortion
  2. incomplete abortion
  3. missed abortion
  4. inevitable abortion
  5. recurrent abortion
  6. septic abortion
Definition
  1. threatened: vaginal bleeding before 20 weeks w/o passage of any products; cervix is closed. tx: reassurance and outpatient follow-up (bedrest and no sex is recommended only for psychological benefit to parents).
  2. incomplete: passed some, but not all, of the products of conception; cervical dilation.
  3. missed: fetal demise w/o cervical dilatation or passage of products of conception; if pt stable 1st tri - expectant management (no ↑ in risk of hemorrhage/infection), 2nd tri - dilation & evacuation.
  4. inevitable: vaginal bleeding, dilated cervix; u/s → ruptured or collapsed gestational sac w/ absence of fetal cardiac motion.
  5. recurrent: 3 successive spontaneous abortions; test for SLE, DM, thyroid disease, maternal/paternal chrom, uterine imaging w/ hysteroscopy or hysterography NOT CT/MRI.
  6. septic abortion: fever, bleeding w/ dilated cervix, tender uterus.
  • 1st trimester surgical abortion does not ↑ risk of subsequent spontaneous 1st trimester pregnancy loss.

U2T16, U3T34, UW4804

Term
How is vaginal bleeding from a spontaneous abortion managed?
Definition
  • dilation & suction curettage
  • products of conception need to be evacuated to control the bleeding.

U2T16

Term
Which systemic diseases are assciated w/ early pregnancy loss?
Definition
  • DM
  • chronic renal disease
  • lupus
  • HTN, hx of pre-eclampsia, prior termination of pregnancy DO NOT ↑ risk of 1st trimester loss.

U2T16

Term
A pt with an uncomplicated gestation suddenly experiences a pink-tinged d/c at 19 weeks pregnancy. PE → completely dilated cervix w/ amniotic sac bulging into vagina to level of introitus. What is the dx?
Definition
  • incompetent cervix.
  • tx: cervical cerclage after 1st trimester; suturing of cervix at 12-14 weeks.
  • risk factors: cone bx for tx of abnormal Pap.

U2T16, U2T21

Term
What maternal lung condition is associated with 25-50% risk for death?
Definition
  • pulmonary HTN; these women are at greatest risk w/ ↓ venous return & ↓ R. ventricular filling (assoc. w/ most maternal deaths).
  • similar mortality rates are seen in aortic coarctation w/ valve involvement and Marfan syndrome w/ aortic involvement.

U2T17a

Term
How is thyroid storm tx?
Definition
  • propylthiouracil
  • propranolol
  • sodium iodide
  • dexamethasone
  • contraindicated in pregnancy: radioactive iodoine (I-131); concentrates in fetal thyroid → congenital hypothyroidism.

U2T17a

Term
What is the most common cause of sepsis in pregnancy?
Definition
  • pyelonephritis

U2T17a

Term
Which medication is used during pregnancy to tx migraine headaches?
Definition
  • amitriptyline (TCA)
  • good safety profile
  • unrelated to migraines, but also safe: levothyroxine, labetalol, acyclovir.

U2T17a

Term
Your pregnant pt has syphylis, but has an allx to the abx. What is the alternative tx?
Definition
  • even if pt is allx (anaphylaxis) to penicillin, it is still the #1 choice; no proven alternatives to penicillin during pregnancy (doxycycline is contraindicated in pregnancy).
  • desensitization followed by IM benzathine penicillin G.
  • also, all pregnant women should be screened for syphilis regardless of risk factors.
  • screen with RPR or VDRL; if (+) confirm w/ fluorescent treponemal antibody-absorption test (FTA-ABS).

U2T17a, UW 4530

Term
When should a patient be screened for gestational DM?
Definition
  • if no risk factors assess at 24-28 weeks (performed in 2 steps: 50g, 1-hour oral glucose challenge; if abnormal (>140 mg/dl) → diagnostic 100g, 3-hour oral glucose tolerance test (≥ 2 abnormal 100 g glucose results = gestational diabetes).
  • 1-hour: < 180, 2-hour: < 155, 3-hour: < 140
  • target is fasting glucose < 95 mg/dl, 1-hour postprandial 130-140 mg/dl, or 2-hour postprandia < 120 mg/dl.
  • tx  - diet, but insulin may be required; insulin does not cross placenta.
  • pt at low risk are not routinely screened.
  • if high risk, screen as soon as possible; risk - obesity, FHx DM, previous GDM.

U2T17a, acog p. 156

Term
What is the best way to dx pneumonia during pregnancy?
Definition
  • CXR is essential for dx
  • PFTs, sputum cultere, serologic testing, cold agglutin identification, and bacterial Ag testing is not recommended in uncomplicated pneumonia.

U2T17b

Term
Adenocarcinoma of the breast is dx during pregnancy. What is the recommended course of tx?
Definition
  • surgical excision and chemothx
  • chemothx after first trimester
  • radiation thx is NOT recommended!
  • when breast cancer is dx during pregnancy, it has been reported that microscopic metastases to regional lymph nodes are likely.

U2T17b, Kap Q0099m

Term
What should not be used to tx depression during pregnancy?
Definition
  • paroxetine (SSRI) → fetal cardiac anomalies & persistent pulmonary HTN.
  • sertraline and fluoxetine are permissible SSRIs.

U2T17b

Term
What is a common non-pregnancy related indication for surgery during pregnancy?
Definition
  • appendicitis
  • difficult to dx - anorexia, N&V are commonly associated w/ pregnancy.
  • uterus can displace appendix upwardly and laterally.
  • dx: graded compression ultrasonography (↑ sensitivity & specificity, esp < 35 weeks).
  • ddx: preterm labor, pyelonephritis, renal colic, placental abruption, degeneration of a uterine myoma.

U2T17b

Term
Which morbid conditions are assoc w/ pregnancy and obesity?
Definition
  • HTN
  • gestational DM
  • preeclampsia
  • fetal macrosomia
  • postpartum complications
  • ↑ rates of caesarean delivery

U2T17b

Term
How is pyelonephritis tx during pregancy?
Definition
  • aggressive hydration
  • abx (should improve w/in 72 hours).
  • if no improvement → u/s evaluation looking for obstruction.
  • relieve obstruction w/ cystoscopic placement of double-J ureteral stent, unless long-term stents are foreseen (then, percutaneous nephrostomy).

U2T17b

Term
What is pruritis gravidarum?
Definition
  • mild variant of intrahepatic cholestasis → jaundice → pruritis.
  • tx: ursodeoxycholic acid

U2T17b

Term
What agents are used to treat HTN (severe preeclampsia)?
Definition
  • α-methyldopa (first-line medication for tx HTN in pregnancy); centrally acting α2-adrenergic agonist.
  • hydralazine (direct vasodilator)
  • labetalol
  • the goal is to lower the diastolic to a safe range (90-100 mmHg), and not a normal BP. This is to prevent maternal stroke or abruption, but maintain adequate placental perfusion.

U2T18, UW 4780

Term
What is the thx level of Mg?
Definition
  • 4-7 mEq/L
  • loss of deep tendon reflexes occur at 7-10.
  • respiratory depression at 12
  • cardiac arrest >15.
  • magnesium prevents seizures (tx of choice for eclampsia); administered during labor & 24 hrs postpartum to prevent seizures.
  • tx MgSO4 toxicity w/ calcium gluconate.

U2T18, UW2561

Term
What are contraindications of expectant management of severe preeclampsia?
Definition
  • thrombocytopenia < 100,000
  • uncontrollable HTN w/ 2 anti-hypertensives.
  • non-reassuring fetal surveillance (look for growth restriction or oligohydramnios).
  • ↑ LFTs (2x normal)
  • eclampsia
  • CNS symptoms
  • oliguria
  • FYI: uric acid and hemoconcentration are markers for preeclampsia.

U2T18

Term
What are the dx criteria for preeclampsia?
Definition
  • mild: persistent elevation of BP (> 140/90) & 24 hour urine protein > 300 mg (1-2+ on dipstick) after 20th week of gestation; manage with bedrest & observation; deliver if fetal lungs are mature.
  • severe: mild preeclampsia + 24 hour urine protein > 5000 mg (3-4+ on dipstick) or BP > 160/110.
  • if HTN is detected and is new w/ normal lab values and no proteinuria → gestational HTN.
  • if gestational age is adequate (>34 weeks) → deliver; only cure for preeclampsia.

U2T18, Kap Q0774m, UW 2557

Term
What is HELLP syndrome?
Definition
  • it is w/in the spectrum of severe preeclampsia.
  • hemolysis, elevated liver enzymes, low platelets.
  • HELLP can lead to swelling of liver capsule and rupture of liver (w/ or w/o RUQ pain); can be due to centrilobular necrosis, hematoma formation, and formation of thrombi in portal capillary system.
  • can be w/ of w/o hemolysis (↑ bilirubin & anemia).

U2T18, UW 4781

Term
What are the signs and symptoms of acute fatty liver disease?
Definition
  • occurs late in pregnancy.
  • symptoms develop over days to weeks and include malaise, anorexia, N&V, epigastric pain, and progressive jaundice.
  • 50% associated with HTN, proteinuria, and edema, signs suggestive of preeclampsia.
  • ↑ LFTs
  • thrombocytopenia and abnormal coagulation studies
  • may or may not have DIC.
  • Renal Failure
  • severe liver dysfxn w/ hypofibrinogenemia, hypoalbuminemia, hypocholesterolemia, prolonged clotting times.
  • as AFL worsens → hypoglycemia.
  • tx - must deliver baby.
  • High Yield: renal failure, hypoglycemia, hyperbilirubinemia, and coagulopathy helps distinguish this syndrome from HELLP.
  • believed to be due to long-chain 3-hydroxyacyl-conenzyme A deficiency.

U2T18, Kap m000986

Term
What is the best way to monitor for severe fetal anemia?
Definition
  • middle cerebral artery peak systolic velocity
  • also great way to monitor Kell antigen, which does not cause hemolysis, but → destruction & suppression of hematopoietic precursor cells.
  • amniotic fluid surveillance for bilirubin would not be useful for Kell-sensitized pregnancies (linear deviation from OD 450nm does not work).
  • if anti-Kell is detected in mother, test father for anti-Kell Ag (Kell sensitization usually occurs via transfusion). 

U2T19, O&G p. 200

Term
How is severe hemolytic anemia in a fetus tx?
Definition
  • intrauterine intravascular fetal transfusion, directly into umbilical vein.
  • if this is not feasible (inaccessible or hydrops fetalis) → intraperitoneal transfusion.
  • maternal plasmapheresis when disease is severe and intrauterine transfusions are not possible.

U2T19

Term
What causes hydrops fetalis?
Definition
  • severe anemia
  • hydrops fetalis is the collection of fluid in 2 or more spaces (ascites, pericardial effusion, pleural effusion, edema of scalp, polyhydramnios, placentomegaly.

U2T19

Term
How can the amount of feto-maternal transfusion be determined?
Definition
  • Rosette test, if (+) → Kleihauer-Betke test; acidic solution turns mother's RBCs pale, while fetal RBC resists Δ.
  • RhoGAM dose can then be determined (1 dose [300 μg] covers up to 30cc of feto-maternal hemorrhage; most of the time only 0.1 cc are transferred; 0.1 cc can sensitize mother).
  • RhoGAM only desensitizes to D-antigen.
  • Current recommendations for RhoGAM (Rh+ baby) in mother w/o evidence of Rh immunization: IM prophylactivally w/in 72 hours of delivery (if no evidence of fetomaternal hemorrhage), spontaneous or induced abortion, following antepartum hemorrhage, following amniocentesis or chorionic villus sampling, and prophylactically at 28 weeks gestation (first tested w/ indirect Coomb's test).

U2T19

Term
What are the u/s markers for dizygotic (non-identical) twins?
Definition
  • dividing membrane thickness > 3mm, peak (lambda) sign, different fetal genders, and 2 separate placentas (anterior & posterior) always.

  1. Diamniotic dichorionic placentation occurs w/ division prior to morula state (w/in 3 days of fertilization).
  2. Diamniotic monochorionic: division btw day 4-8.
  3. Monoamniotic monochorionic: division between 8-12.
  4. Conjoined twins: division ≥ day 13.

U2T20

Term
What is superfecundation?
Definition
  • fertilization of multiple ova from the same cycle, but from separate acts of sexual intercourse.

U2T20

Term
What is the most common cause of spontaneous abortuses?
Definition
  • autosomal trisomy (40-50% of cases); most commonly trisomy 16.

U2T21

Term
At what gestational age is the fetus most susceptible to developling MR w/ sufficient doses of radiation?
Definition
  • 8-15 weeks
  • no risk < 8 weeks & > 25 weeks.

U2T21

Term
What complication can develop after the demise a fetus in a twin pregnancy?
Definition
  • when a dead fetus has been in utero for 3-4 weeks fibrinogen levels may ↓.
  • pt may experience a nose bleed (common in pregnancy, but can be 2° to coagulopathy).
  • consider induction of viable fetus, but may be delayed; check fibrinogen levels weekly/bi-weekly.

U2T21

Term
Which conditions are associated with breech position?
Definition
  • prematurity
  • multiple pregnancy
  • genetic disorders
  • polyhydramnios
  • hydrocephaly
  • anencephaly
  • placenta previa
  • uterine anomalies & uterine fibroids

U2T22

Term
What is the normal rate of cervical dilation during the active phase of labor?
Definition
  • multiparous women: at least 1.5 cm/hour.
  • if secondary arrest of dilatation occurs → amniotomy; no Δ for 2 hours.
  • after amniotomy and contraction pattern is still not adequate → pitocin.
  • after pitocin and no cervical Δ, place intrauterine pressure catheter to assess strength of contractions.
  • fetus must be stable.

U2T22

Term
What is misoprostol (cytotec)?
Definition
  • prostaglandin
  • cervical ripening & labor induction (↑ uterine contractions).
  • prevention & tx of postpartum hemorrhage

UpToDate

Term
What is the latent phase of labor? active?
Definition
  • prolonged latent phase: nulliparas - > 20 hours, multiparas - > 14 hours; tx w/ rest or augmentation of labor.
  • treat prolonged latent phase w/ rest; Do NOT rupture membranes during latent phase → ↑ risk of infection.
  • active phase: cervical dilation > 4 cm
  • artificial rupture of membranes during latent phase is not recommended as it ↑ risk of infxn.

U2T22

Term
Vaginal bleeding
Definition
  • cervicitis: caused by chlamydia, gonorrhea, trichomonas. cervix is much more vascular during preg and inflammation can → bleeding. can have no pain, cramping, or dysuria; friable cervix.
  • bloody show: cervix extremely vascular during pregnancy. dilation → small amount of bleeding; normal labor; friable cervix.

U2T23

Term
What ↑ risk of placenta accreta?
Definition
  • placenta accreta: placenta grows into myometrium.
  • hx of caesarean section & low anterior placenta.
  • scar tissue from previous surgery prevents proper implantation of placenta and it can grow into muscle.

U2T23

Term
How is placenta previa managed?
Definition
  • in a near term pt, if second episode of bleeding from a placenta previa develops → c-section.
  • do not perform vaginal exam w/o ruling out placenta previa w/ abdominal u/s; not transvaginal and withold digital exam till after u/s.
  • bleeding from placenta previa can occur w/o warning or pain; classically painless bleeding.
  • placenta previa w/ past hx of c-section → ↑ risk of placenta accreta.

U2T23, Kap Q0861

Term
What ↑ risk of placental abruption?
Definition
  • smoking, cocaine, abdominal trauma, chronic HTN, multiparity, and prolonged premature rupture of membranes.
  • painful bleeding
  • lack of vaginal bleeding does not rule out placental abruption (can bleed retroplacentally).
  • normal u/s (only catches 25% of placental abruptions).
  • ↑ uterine contractions/spasms.

U2T23, UW 2407

Term
What is the definition of preterm labor?
Definition
  • presence of regular uterine contractions leading to cervical change.
  • this must be treated promptly.

U2T24

Term
What are the contraindications to some of the tocolytics?
Definition
  • terbutaline and ritodrine: diabetes
  • MgSO4: myasthenia gravis
  • indomethacine: contraindicated in preterm > 33 weeks (↑ risk of closure of ductus arteriosus at 34 weeks).

U2T24

Term
What is the primary risk factor for preterm rupture of membranes?
Definition
  • genital tract infection
  • esp. bacterial vaginosis
  • also multiple gestations, smoking, prior preterm rupture, short cervical length, and oligohydramnios.

U2T25

Term
What is methylergonovine used for? When is it contraindicated?
Definition
  • it is a uterotonic and used to ↑ uterine contractions & ↓ uterine bleeding.
  • since methylergonovine is a potent smooth muscle constrictor, do not use in women w/ HTN and preeclampsia.
  • other uterotonics: prostaglandins (misoprostol) and oxytocin (pitocin).

U2T27

Term
Prostaglandin F2-α (hemabate)
Definition
  • potent smooth muscle constrictor (uterotonic)
  • but also has a bronchio-constrictive effect; contraindicated in asthma pts.

U2T27

Term
Which uterotonics should never be administered IV?
Definition
  • prostaglandin F2-α IV → bronchoconstriction; can be directly injected into uterus.
  • methylergonovine IV → stroke.
  • oxytocin, never as IV push, but as rapid infusion of a dilute solution.

U2T27

Term
What is a common, non-infectious cause of low-grade fever in a postpartum woman?
Definition
  • breast engorgement; it is an exagerrated response to the lymphatic and venous congestion associated with lactation.
  • milk "let-down" usually occurs on postpartum day 2 or 3; if the baby is not feeding well the breast can become engorged.

U2T28

Term
What GI condition is ↑ during pregnancy?
Definition
  • cholelithiasis → cholecystitis
  • pregnancy puts women at risk for cholelithiasis.

U2T28

Term
Post-partum patient has continued fever despite abx thx, what is a possible dx?
Definition
  • septic thrombophlebitis (thrombosis of venous system of pelvis).
  • tx: abx & anticoagulation → rapid resolution of fever.
  • anticoagulation is short-term.

U2T28

Term
Premenstrual Dysphoric Disorder
Definition
  • form of PMS with severe emotional symptoms (angry, depressed, irritable, labile).
  • most common symptom is abdominal bloating (90%), then breast tenderness and headaches.
  • occurs in the luteal phase.
  • absent in the beginning of the follicular phase.
  • tx - fluoxetine (SSRI) QD or only during symptomatic phase.

U2T29, Kap s2s323m

Term
What is the incidence of postpartum blues?
Definition
  • affects 50% of women w/in 3-6 days postpartum.

U2T29

Term
What is the definition of postterm pregnancy?
Definition
  • 42 completed weeks
  • associated with placental sulfatase deficiency, fetal adrenal hypoplasia, anencephaly, inaccurate or unknown dates, and extrauterine pregnancy.
  • complications of postterm: macrosomia, oligohydramnios, meconium aspiration, uteroplacental insufficiency, dysmaturity.
  • 2x/week monitoring with U/S to evaluate for oligohydramnios (vertical pocket < 2cm or AFI < 5 cm); amniotic fluid can become drastically ↓ in 24-48 hrs.

U2T30, UW3281

Term
What is the best course of action in a pregancy of 41 weeks gestation with no cervical changes, but with good fetal movement?
Definition
  • NST (non-stress test) and AFI (amniotic fluid index) 2x a week w/ induction of labor for a nonreactive NST or oligohydramnios; even @ 42 weeks if gestation is uncertain (gestation should be determined by u/s prior to 20 weeks)
  • induction of an unfavorable cervix (no cervical Δ) → ↑ risk of caesarean sedtion.

U2T30

Term
What purpose does amnioinfusion serve for meconium stained amniotic fluid?
Definition
  • no benefit
  • it is the infusion of normal saline into the intrauterine cavity.
  • used to tx repetitive variable decelerations.

U2T30

Term
What is dysmaturity?
Definition
  • complex of symptoms occurring in an infant, such as a relative absence of subQ fat, skin wrinkling, prominent fingernails and toenails, meconium staining of skin and placental membranes.
  • incidence of dysmaturity approaches 10% when gestational age > 43 weeks.

U2T30

Term
How should a 42 week pregnancy w/ no cervical Δ be managed?
Definition
  • use cervical ripening agents.
  • prostaglandin E1 applied locally is the most commonly-used cervical riepning agent.

U2T30

Term
What is a common doppler finding in IUGR fetuses?
Definition
  • ↑ systolic/diastolic ratio of the umbilical artery (sign of ↑ vascular resistance).

U2T31

Term
What is a reliable way to date a pregnancy?
Definition
  • crown-rump length (dates pregnancy w/in 5-7 days).
  • crown-rump at 6-12 weeks supports gestational age of at least 39 weeks.
  • crown-rump at 13-20 weeks confirms gestational age of at least 39 weeks determined by clinical hx and physical exam.

U2T31

Term
What findings are indicative of uteroplacental insufficiency in terms of fetal growth?
Definition
  • head-sparing effect w/ an asymmetric growth pattern.
  • head/brain is spared ↓ blood flow (head size remains very close to normal).
  • fetal abdomen measues below normal.

U2T31

Term
What adult conditions does fetal growth restriction predispose the infant to?
Definition
  • cardiovascular disease
  • chronic HTN
  • COPD
  • diabetes

U2T31

Term
What causes polyhydramnios?
Definition
  • hyperglycemia → ↑ renal osmotic load
  • abnormal fetal swallowing (CNS: anencephaly or GI abnormalities: esophageal aresia, duodenal atresia, diaphragmatic hernia)

U2T31

Term
Levonorgestrel
Definition
  • the intrauterine device is protective against uterine cancer b/c of release of progestin in the endometrial cavity.
  • also "Plan B": effective for up to 120 hours after intercourse, and delays ovulation.

U2T33, UW 2393

Term
Describe each degree of laceration for episiotomies?
Definition
  • first-degree: only vaginal mucosa
  • second-degree: vaginal fascia and perineum.
  • third-degree: rectal partial or complete transection of the rectal sphincter.
  • fourth-degree: external anal sphincter, the internal anal sphincter, and the rectal mucosa.

U2T32

Term
When should a caesarean section be considered in a postterm pregnancy?
Definition
  • caesarean NOT indicated for macrosomia (> 4000 g), 42 weeks gestation, and polyhydramnios.
  • consider c-section > 5000 g in woman without diabetes, 4500 g in woman with diabetes.
  • fetal head > 12 cm could benefit from c-section.

U2T32

Term
What risks are associated with vacuum delivery?
Definition
  • fetal lacerations at edge of vacuum cup particularly if torsion is applied (maternal laceration occurs w/ forceps delivery).
  • torsion can also → separation of fetal scalp from underlying structures → cephalohematoma → ↑ risk of jaundice.

U2T32

Term
What does left sacrum anterior mean?
Definition
  • breech position
  • breech infants delivered vaginally are at higher risk for neonatal complications → caesarean section.
  • external cephalic version is contraindicated in active labor.

U2T32

Term
What are the contraindication to estrogen?
Definition
  • hx of thromboembolic disease
  • lactating women
  • smokers of age > 35
  • severe nausea w/ combine OCP
  • the above are ideal candidates for progetin-only pills

U3T33

Term
What are some contraindications of OCPs?
Definition
  • chronic HTN
  • smokers > 35 years old
  • impaired liver fxn, hepatic neoplasm
  • known or suspected breast cancer
  • thrombophlebitis, thromboembolic disease
  • undiagnosed abnormal vaginal bleeding
  • cerebral vascular disease
  • known or suspected pregnancy
  • congenital hyperlipidemia
  • can worsen diabetes (↑ insulin resistance).
  • can cause cholestasis or cholecystitis.
  • OCPs ↑ risk of cervical cancer

U3T33, p. 227, UW 2392, 3359

Term
What non-contraceptive benefit does tubal ligation provide?
Definition
  • slight ↓ in risk of ovarian cancer.

U3T33

Term
What happens during the initial course of depo-provera (medroxyprogesterone-acetate)?
Definition
  • unpredictable bleeding for 2-3 months (resolves)
  • after 1 year of depo-provera, nearly 50% of users have amenorrhea.
  • progestin → endometrial thinning & suppresses secretion of FSH/LH.

U2T33

Term
Asherman's syndrome
Definition
  • adhesions or fibrosis of endometrium
  • associated w/ D&C

wikipedia

Term
Until what gestational age can vacuum aspiration be employed?
Definition
  • < 8 weeks

U3T34

Term
What are the various methods used for abortion?
Definition
  • D&C if fetus < 16 weeks.
  • dilation & evacuation can be performed after 16 weeks by those trained in procedure.
  • induction w/ intravaginal prostaglandins (intact fetus for autopsy).
  • abortion is legal until viability is reached (24 weeks).

U3T34

Term
How does mifepristone and misoprostol → abortion?
Definition
  • mifepristone is an antiprogestin
  • misoprostol (a prostaglandin) → uterine contractions to expel products of conception.
  • medical abortion (vs. surgical) is associated w/ higher blood loss.

U3T34

Term
How is septic abortion managed?
Definition
  • uterine evacuation + broad-spectrum abx
  • medical termination is not a good option since prompt evacuation is indicated.

U3T34

Term
How does lichen planus present?
Definition
  • manifests as inflammatory mucocutaneous eruptions characterized by remissions and flares.
  • involves hair-bearing skin and scalp, nails, oral mucous membranes, and vulva.
  • vulvar symptoms: irritation, burning, pruritis, contact bleeding, pain & dyspareunia.
  • Clinical findings: lacy, reticulated pattern of labia and perineum.

U3T35

Term
How is vulvar vestibulitis tx?
Definition
  • TCA to block sympathetic afferent pain loops, pelvic floor rehabilitation, biofeedback, and topical anesthetics.
  • surgery w/ vestibulectomy is recommended for non-responsive pts.
  • vulvar vestibulitis - severe pain on vestibular touch or attempted vaginal entry (sexual intercourse and tampon placement → exquisite pain). Abrupt onset of symptoms, and are sharp, burning, and produces a raw sensation. May have focal or diffuse erythematous macules.
  • primary or inciting event cannot be determined.

U3T35

Term
What ↑ susceptibility to bacterial vaginosis?
Definition
  • a shift in vaginal flora from hydrogen peroxide producing lactobacilli to non-hydrogen peroxide producing lactobacilli → proliferation of anaerobic bacteria.
  • thin, gray homogenous vaginal discharge
  • positive whiff test (KOH → release of amines)
  • clue cells on saline microscopy
  • ↑ vaginal pH (> 4.5)
  • tx - metronidazole

U3T35

Term
What population is effected by lichen sclerosis?
Definition
  • caucasian premenarchal girls and postmenopausal women.
  • present w/ extreme vulvar pruritis
  • early skin Δs include polygonal ivory papules involving vulva and perianal areas, waxy sheen on labia minora and clitoris, hypopigmentation.
  • vagina is NOT involved.
  • scarring w/ loss of normal architecture (introital stenosis, resorption of clitoris [phimosis] & labia minora).
  • tx: high-potency topical steroids (clobetasol or halobetasol).
  • can progress to non-HPV vulvar carinoma (< 5%); must punch bx.

U3T35, Kap m001008, UW4810

Term
Mucopurulent cervicitis
Definition
  • mucopurulent exudate visible in endocervical canal
  • usually asymptomatic, but can have abnormal discharge or abnormal vaginal bleeding.
  • Chlamydia (most common cause) or N. gonorrhoeae
  • tx: azithromycin or doxycycline (chlamydia) & cephalosporin or quinolone (gonorrhea).

U3T35, UW 4158

Term
How does salpingitis present?
Definition
  • abdominal pain w/ exquisite tenderness during pelvic examination; can be more severe w/ fever and mucopurulent d/c as well; this is PID.
  • u/s may reveal complex masses, possibly bilateral (tuboovarian abscess).
  • this is an ascending infxn; polymicrobial (E. coli, , Klebsiella, Prevotella, G. vaginalis, GBS)
  • dx criteria: lower abdominal tenderness, uterine/adnexal tenderness, mucopurulent cervicitis.
  • tx - cefoxitin/doxycyline, cefotetan/doxy, clindamycin/gentamicin.

U2T36, UW 2416

Term
When should UTI be considered in a pt w/ no obvious signs?
Definition
  • UTIs can be mild or even asymptomatic.
  • low pelvic pain, ↑ urinary frequency, urinary urgency, hematuria, or new issues w/ incontinence.
  • pregnant pts should be routinely screened for UTIs; it can cause preterm labor.
  • tx w/ Nitrofurantoin, cephalexin, or amoxicillin (some E. coli are resistant) ; always confirm resolution w/ urine culture 10 days after tx.
  • if second UTI occurs during pregnancy after tx first UTI, place pt on prophylactic abx (nitrofurantoin or sulfisoxazole); all women w/ UTI during pregancy should be rescreened periodically.

U3T36, Kap Q0777, UW 4472

Term
What conditions do PID encompass?
Definition
  • endometritis
  • salpingitis (bilateral pain)
  • oophoritis
  • can progress to tuboovarian abscess, peritonitis, and sepsis.
  • tx: clindamycin & gentamicin, cefoxitin/doxy, or cefotetan/doxy; d/c with doxycycline.
  • most commonly caused by chlamydia or gonorrhea, but it is actually a polymicrobial infxn.

U3T36, UW 2416

Term
Why is aggressive abx thx necessary for tx of pelvic infxns w/ chlamydia/gonorrhea?
Definition
  • to prevent scarring of fallopian tubes and infertility.
  • admit and tx w/ IV abx if pt is N&V or ↑ fever (102 °F/38.9 °C).
  • tx: azithromycin (chlamydia) & ceftriaxone (gonorrhea)

U3T36, Kap m000138.seq

Term
What procedure should be considered for a prolapsed vagina in a women that cannot undergo general anesthesia?
Definition
  • colpocleisis: procedure involving closure of vagina (remove strips from anterior & posterior walls, w/ closure of margins of the anterior and posterior wall to each other; a septum will then divide the vaginal canal into 2).

U3T37

Term
What defect is corrected when repairing cystoceles?
Definition
  • central & lateral cystoceles: fix defect in pubocervical fascia.
  • pessary is a device inserted into vagina to provide structural support (to correct urinary incontinence, uterine prolapse, or cystocele).

U3T37

Term
What is overflow incontinence?
Definition
  • incomplete emptying of the bladder due to underactive detrusor muscle.
  • post-void residual volume is > 300 cc; normal PVR is 50-60 cc.
  • urge incontinence (detrusor overactivity incontinence or detrusor instability); uninhibited contraction of bladder with filling, tested w/ cytometrogram.

U3T37

Term
What are the 2 main causes of genuine stress incontinence?
Definition
  • urethral hypermobility (straining Q-tip angle > 30° from horizon); tx - kegel exercises (strengthening pelvic floor), retropubic urethropexy, and sling procedures.
  • intrinsic sphincteric deficiency of the urethra ("drain pipe" urethra; tx - urethral bulking procedure.

U3T37, UW 2398

Term
Which medication works well for urge incontinence?
Definition
  • first-line thx - kegel exercise and bladder training.
  • anticholinergic agent - oxybutynin; contraindicated in glaucoma.
  • urge incontinence - secondary to detrusor instability.

U3T37

Term
What is adenomyosis?
Definition
  • endometrial glands embedded in the wall of the uterus → soft boggy uterus.
  • MRI may demonstrate globular uterus w/ cystic areas seen in myometrial wall.
  • grows during menstrual cycle, but cannot shed and becomes trapped → uterine pain.
  • for women > 35, it is mandatory to perform endometrial curettage to rule out endometrial carcinoma.

U4T46, Kap s2s119, UW 3120

Term
What is the typical presentation of endometriosis?
Definition
  • dysmenorrhea
  • dyspareunia
  • pelvic masses: nodularity on back of uterus, u/s may reveal cysts on ovaries (simple or complex); endometrial glands and stroma outside uterus.
  • most common site is the ovaries.
  • tx - OCP → provide negative feedback to pituitary-hypothalamic axis → sotps stimulating ovaries to produce sex hormones; less commonly- GnRH agonist → initial ↑ FSH/LH → desensitization → suppression of hypothalamic-pituitary axis.
  • endometrioma (chocolate cyst) - caused by endometriosis within the ovaries.

U3T38

Term
How does clomiphene work?
Definition
  • selective estrogen receptor modulator (SERM)
  • depletes hypothalamic estrogen receptors → inhibiting negative feedback of estrogen → ↑ pulsatile secretion of GnRH → ↑ FSH/LH release → growth of ovarian follicle → follicular rupture.

U3T38

Term
How is endometriosis definitively dx?
Definition
  • first tx based on clinical presentation (NSAIDs and OCPs)
  • exploratory laparoscopy to dx.
  • if NSAIDs & OCPs fail → diagnostic laparoscopy, even in an adolescent (common in teens w/ chronic pelvic pain).

U3T38

Term
An ovarian cyst is detected on u/s in a postmenopausal pt w/ a hx of endometriosis. What is the next step?
Definition
  • exploratory surgery
  • the mass may be an old endometrioma (chocoloate cyst), but cannot be assumed.

U3T38

Term
What is the best imaging modality for studying the uterus and adnexa?
Definition
  • u/s
  • MRI and CT will not provide much more information.

U3T38

Term
hemorrhagic cyst vs ovarian carcinoma?
Definition
  • indication for TAH/BSO?

U3T38

Term
How does ovarian torsion present?
Definition
  • sudden onset of abdominal pain
  • cyst on u/s (cyst predisposes to torsion)
  • right ovary more likely to torse
  • causes: cyst, strenuous exercise, sudden ↑ in abdominal pressure.
  • doppler is not useful b/c flow does not rule out torsion.
  • ddx - endometriosis (but will not be sudden, and menses should correlate), ectopic preg (β-hCG), appendicitis (will not be sudden).
  • tx - surgical exploration.

U3T38

Term
What is interstitial cystitis?
Definition
  • chronic inflammatory condition of bladder.
  • recurrent irritative voiding symptoms of urgency & frequency.
  • chronic pelvic pain in 70% (can be chief complaint); pain typically relieved by voiding.
  • pain exacerbated by sexual intercourse, filling of bladder, exercise, spicy foods, and certain beverages.
  • cystoscopy deminstrates submucosal petechiae or ulcerations.

U3T39, UW 4807

Term
What are the common GnRH agonists?
Definition
  • nafarelin
  • goserelin
  • leuprolide

U3T39

Term
Danazol
Definition
  • androgen (17-α-ethinyl testosterone)
  • suppresses pituitary output of FSH/LH → regression of normal and ectopic endometrial tissue.
Term
What medication causes a pseudopregnancy state?
Definition
  • combined estrogen/progestin thx

U3T39

Term
Pelvic congestion syndrome
Definition
  • pelvic varicosities → chronic pelvic pain
  • pain aggravated by standing, fatigue, and coitus.
  • pain described as pelvic "fullness" or "heaviness," and may extend to vulvar area and legs.
  • also associated w/ vaginal d/c, backache, and urinary frequency.

U3T39

Term
A women with white, watery nipple d/c presents to the office. Prolactin levels are 45 ng/ml (normal < 40). What is the next step?
Definition
  • fasting prolactin level (manipulation of breast during exam → ↑ prolactin levels.
  • if fasting prolactin is ↑ → brain MRI.

U3T40

Term
What can exacerbate pain associated w/ fibrocystic breast changes?
Definition
  • caffeine
  • fibrocystic disease (most common benign breast condition) often associated w/ cyclic mastalgia (breast pain).

U3T40

Term
Fine needle aspiration of a breast mass is clear. What is the next step?
Definition
  • reexamine in 2 months to ensure that cyst has not recurred.
  • Note: breast mass age < 30 → u/s; > 30 → u/s & mammogram (suspicious for malignancy → core bx).

UW2345

Term
What abx is used to tx mastitis?
Definition
  • most common pathogen is staph aureus
  • use dicloxacillin (penicillin-type)
  • if allx to penicillins, use erythromycin.

U3T40

Term
Breast mass w/ negative mammogram & FNA. What is the next step?
Definition
  • excisional bx
  • false-negative FNA is possible.
  • no need to repeat mammogram in 2 months.

U3T40

Term
How is low-grade squamous intraepithelial lesion on PAP worked up? high-grade?
Definition
  • LSIL - colposcopy directed bx. If bx confirms CIN-I → Pap smear at 6 & 12 mos or HPV DNA testing at 12 mos. No need to excise of ablate for LSIL.
  • HSIL - LEEP (loop electrosurgical excision procedure, like a bovie); removes entire transformation zone and dysplastic areas identified via colposcopy.

U3T41

Term
In what order does a girl progress through puberty?
Definition
  1. breast budding (thelarche, age 10)
  2. hair growth (adrenarche)
  3. growth spurt
  4. menarche (age 12-13)
    normal age for menarche is btw 9 and 17. if 2° sex characteristics are present (buds and pubic hair) and pt is 15, just wait; no tests.

U4T42

Term
What 3 factors are critical for 2° sexual characteristics?
Definition
  1. adequate body weight (85-106 lbs is necessary)
  2. sleep
  3. optic exposure to sunlight

U4T42

Term
What are some characteristics of Kallmann syndrome?
Definition
  • olfactory tract hypoplasia (anosmia)
  • color blindness
  • facial deformities
  • no GnRH secretion → no 2° sex characteristics
  • tx: pulsatile GnRH thx

U4T42, Kap Q0513

Term
DHEA vs DHEAS
Definition
  • DHEA → androstenedione/androstenediol → testosterone → dihydrotestosterone
  • DHEA via sulfotransferase → DHEAS
  • DHEAS levels 300x ↑ than DHEA
  • DHEA peaks in early morning; DHEAS has no diurnal variation (levels are more stable).
  • DHEA produced in adrenals, gonads (ovary/testes), and brain.
  • DHEA → DHEAS in adrenals, liver, small intestine.
  • for rapid onset virilization suspect ovarian or adrenal tumor.

wikipedia, UW2170

Term
How is precocious puberty tx?
Definition
  • if precocious by a few months observation.
  • otherwise tx w/ GnRH agonists to suppress pituitary secretion of FSH/LH.
  • precocious puberty (puberty before ages 6 or 7)
  • GnRH dependent (central, ↑ FSH/LH) or GnRH independent (peripheral production of androgen or estrogen via ovarian cysts/tumors, adrenal tumors, congenital adrenal hyperplasia - 21-hydroxylase deficiency → ↑ androgens → testosterone and estradiol; ↓ FSH/LH).

U4T42, acog p. 310, UW 3868

Term
Idiopathic isosexual precocious puberty
Definition
  • GnRH dependent and leads to precocious puberty, but with the normal order of pubertal events.
  • thelarche → pubarche → growth spurt → menarche

U4T42

Term
What is on the ddx for hypothalamic-pituitary amenorrhea?
Definition
  1. functional (weight loss, obesity, excessive exercise)
  2. drugs (marijuana and tranquilizers)
  3. neoplasia (pituitary adenoma)
  4. psychogenic (chronic anxiety and anorexia nervosa)
  • excessive exercise → ↓ GnRH and ↓ LH → ↓ estrogen. 

U4T43

Term
What increases the risks for premature rupture of membranes?
Definition
  • genital tract infections (bacterial vaginosis)
  • smoking during pregnancy, ↑ 2x
  • prior PROM, ↑ 2x (normal risk is 15%; hx → 30%)
  • short cervical length
  • prior preterm delivery
  • hydramnios
  • multiple gestations
  • bleeding in early pregnancy
  • PROM - membrane rupture prior to onset of uterine contractions.

Ob/Gyn p. 213, U2T25

Term
How is amniotic fluid differentiated from vaginal fluid and urine?
Definition
  • nitrazine test
  • amniotic fluid pH > 7.1
  • vaginal secretions (pH 4.5-6.0)
  • urine (pH < 6.0)
  • fern test - allow fluid to dry, and pattern resembles the leaves of a fern.
  • never perform digital exam if PROM is supected; introduce bacteria → chorioamnionitis.

p. 214

Term
How is PROM managed?
Definition
  • at term (≥ 37 weeks): 90% will go into labor, waiting 12-24 hrs for spontaneous is appropriate as long as no risk factors (eg, previous or current GBS infection), or induction w/ oxytocin if cervix is unfavorable.
  • preterm: assess fetal lung maturity and chorioamnionitis.
  • at 34 weeks or beyond deliver (steroids not recommended to ↑ fetal maturity after 34 weeks).
  • PROM at 24-31 weeks: care for pt expectantly until 33 weeks; abx and corticosteroids.

p. 215

Term
How is amnenorrhea in PCOS best treated?
Definition
  • OCPs

U4T43

Term
What is Asherman's syndrome? Cause?
Definition
  • intrauterine synechiae or adhesions from trauma to basal layer of endometrium → amenorrhea.
  • caused by curettage or endometritis.

U4T43

Term
Late onset 21-hydroxylase deficiency
Definition
  • hirsutism and acne
  • check 17-hydroxyprogesterone levels

U4T44

Term
What are the causes of hirsutism?
Definition
  • PCOS
  • Cushing
  • late-onset 21 hydroxylase deficiency
  • hyperinsulinemia
  • idiopathic hirsutism
  • Sertoli-Leydig tumor

U4T44

Term
Why does hair loss occur after pregnancy?
Definition
  • ↑ estrogen during pregnancy → synchrony of hair growth; therefore, hair grows in the same phase and is shed at the same time.
  • non-pregnant state → asynchronous hair growth.

U4T44

Term
Sertoli-Leydig cell tumors
Definition
  • occurs most commonly in women btw the ages of 20-40)
  • rapid onset of hirsutism and virilizing signs
  • acne, hirsutism, amenorrhea, clitoral hypertrophy, deepening of voice.
  • suppression of FSH/LH, ↑ testosterone, ovarian mass (usually unilateral).

U4T44

Term
How is hirsutism tx?
Definition
  • spironolactone in addition to OCPs
  • lupron and depo-provera are good 2nd line thx

U4T44

Term
An adolescent with recent menarche reports heavy menstrual flow. What is the dx?
Definition
  • coagulopathy can present with mentstrual symptoms in young women.
  • Von Willebrand disease is most comon.

U4T45

Term
How is an endometrial polyp managed?
Definition
  • < 1.5 cm → observation
  • > 1.5 cm → curettage, polypectomy, hysterectomy
  • women w/ infertility → polypectomy is preferred.

U4T45

Term
What lab findings are associated w/ PCOS?
Definition
  • ↓ FSH, ↑ LH (LH/FSH ratio will be ↑; both must be tested)
  • ↑ normal testosterone or slightly above normal.
  • free testosterone is ↑ b/c sex hormone binding globulin is ↓ by ↑ androgens.
  • ↑ LH → ↑ androgens (theca cells) → hirsutism
  • male pattern baldness
  • stigmata of insulin resistance (acanthosis nigricans).

U4T45, T48, pathoma p. 144, UW 2414

Term
What is the difference btw dysfunctional uterine bleeding and mid-cycle bleeding?
Definition
  • dysfxnl: irregular or increased menstrual bleeding w/o identified etiology; hormonal imbalance, eg anovulation (tx - high-dose estrogen & high-dose progesterone combination orally).
  • mid-cycle: occurs at time of ovulation and is due to drop in estrogen.

U4T45, Kap m001007

Term
How is dysmenorrhea tx?
Definition
  • OCPs
  • progestin in OCP → endometrial atrophy, improving dysmenorrhea.

U4T46

Term
Causes of Dysmenorrhea
Definition
  • primary dysmenorrhea (no abnormalities on physical exam).
  • endometriosis
  • PID → secondary dysmenorrhea
  • adenomyosis
  • leiomyomas (bx age > 40, r/o endometrial carcinoma)

U4T46

Term
What must be considered in a women with menopausal symptoms and intermittent small amounts of vaginal bleeding?
Definition
  • before initiating hormone thx, must rule out endometrial carcinoma.
  • either tissue dx or pelvic u/s w/ endometrial stripe < 4 mm.

U4T47

Term
At what age does premature ovarian failure occur?
Definition
  • < 40
  • ↑ FSH/LH, FSH:LH ratio > 1
  • ↑ FSH ≥ 3 mos
  • developing follicles → estrogen secretion
  • estrogen → suppresses FSH/LH
  • symptoms: amenorrhea, hot flashes, vaginal & breast atrophy, anxiety, depression, irritability.

U4T47, UW 4136, 3814

Term
What is the recommended calcium intake for postmenopausal women?
Definition
  • 1200 mg

U4T47

Term
What is the most common reason for women to stop their hormone replacement thx?
Definition
  • irregular vaginal bleeding
  • women that are amenorrheic for a period do not like the resumption of any vaginal bleeding/spotting.

U4T47

Term
What is the most effective tx for minimizing hotflashes?
Definition
  • estrogen
  • use lowest dose for the shortest duration of time.

U4T47

Term
What benefits do hormone replacement thx provide? adverse side effects?
Definition
  • ↓ LDL, ↑ HDL (not recommended for 1° prevention of heart disease). 
  • minimize hot flashes
  • ↓ bone loss

  • breast cancer
  • MI
  • cerebrovascular accidents
  • thromboembolic events
  • endometrial cancer w/ intact uterus

U4T47

Term
What are the important T score ranges? What are some risk factors for fracture?
Definition
  • osteopenia (-1 to -2.5)

  • prior fracture
  • Fhx osteoporosis
  • race
  • dementia
  • hx of falls
  • poor nutrition
  • smoking
  • low BMI
  • estrogen deficiency
  • alcoholism
  • insufficient physical activity

U4T47

Term
How is ovulatory dysfxn in PCOS managed?
Definition
  • most important for pt to lose weight
  • first-line thx: metformin and ovulation inducing agents.

U4T48

Term
How does imipramine cause infertility?
Definition
  • ↑ prolactin
  • hypothyroidism can also → hyperprolactinemia.

U4T48

Term
Deficiency in which vitamins are associated with premenstrual syndrome?
Definition
  • deficiency of vitamin A, E, and B6.

U4T49

Term
Why is a prospective symptom calendar so important when assessing for the presence of premenstrual syndrome or dysphoric disorder?
Definition
  • clarify if the symptoms are cyclic or constant.
  • people can ascribe symptoms to their menstrual cycle, when in fact they are suffering from depression.
  • PMS (mild to moderate; tx OCPs), PMDD (severe symptoms).
  • SSRI (fluoxetine) for PMS & PMDD, can be taken everyday or for 10 days during luteal phase.

U4T49

Term
What is the standard management for molar pregnancies?
Definition
  • suction curettage
  • methotrexate is reserved for development of post-molar gestational trophoblastic disease (GTD).
  • after evacuation, serial β-hCG monitoring to ensure spontaneous regression. pregnancy should be avoided intil 6 months after β-hCG has normalized; effective contraception (OCPs) highly recommended during this period.

U5T50

Term
What ↑ the risk for molar pregnancies?
Definition
  • folic acid deficiency
  • supplementation w/ folic acid may↓ risk of molar pregnancy.
  • asian race associated w/ higher incidence of molar pregnancy.
  • < 20 y.o and > 40 y.o.
  • β-carotene deficiency (vit A precursor)
  • ≥ 2 miscarriages
  • after having 1 molar pregnacy, risk of another is only 1-2% (higher than normal, but still ↓).

U5T50

Term
How does a molar pregnancy present?
Definition
  • vaginal bleeding is universal in molar pregnancies.
  • uterine size > than gestational age in 25-50% of moles.
  • complete mole - no fetus visualized on u/s; 46,XX or 46,XY w/ ↑↑↑↑ β-hCG, 2% → choriocarcinoma, 15-20% malignant trophoblastic disease. 2 sperm + empty egg.
  • partial mole - fetus may be present, but grossly abnormal; 69,XXX, 69,XXY, 69,XYY w/ ↑ β-hCG, choriocarcinoma rare, < 5% risk of malignancy. 2 sperm + 1 egg.

U5T50, FA p. 540

Term
Amenorrhea and hypo/hyperthryoidism → discuss.
Definition
  • hypothyroidism → ↑ TRH or TSH → stimulation of lactotrophs (↑ prolactin) → amenorrhea.
  • hyperthyroidism is associated with vaginal bleeding.

UW 4221

Term
When can an u/s confirm a pregnancy?
Definition
  • gestational age ≥ 10 weeks.

U5T50

Term
How is choriocarcinoma (GTD) dx?
Definition
  • β-hCG level in a reproductive aged woman w/ recent hx of pregnancy (term, miscarriage, termination, mole) is all that is required to establish dx.
  • metastatic choriocarcinoma is quite vascular, so it is best not to bx.
  • tissue dx is not done in choriocarcinoma.
  • risk factors: advanced maternal age, hx of molar pregnancy.
  • presentation after delivery of a term fetus: irregular vaginal bleeding lasting > than the expected postpartum time (4-6 weeks), N&V, abdominal fullness, enlarged uterus, bilateral ovarian cysts (theca-lutein cysts).

U5T50, Kap m000978

Term
How do you decide btw radical vulvectomy and local excision with vulvar carcinoma?
Definition
  • invasive → radical vulvectomy w/ groin node dissection.
  • microinvasive SCCA → wide local excision; must be < 2 cm, well-differentiated, w/ invasion < 1.0 mm.

U5T51

Term
What is the most common vulvar cancer?
Definition
  • squamous cell carcinoma (90%)
  • mean age is 65 years
  • smoking ↑ risk
  • chronic itch-scratch cycle of lichen sclerosis → SCCA.

U5T51

Term
What are the characteristic features of extramamillary Paget's disease?
Definition
  • erythematous with a lacy white mottling of the surface.
  • hyperkeratotic areas w/o a distinct lesion.
  • psoriasis is a possible dx, but consider the age of the pt; it should not present late in life.

U5T51

Term
When is trichloroacetic acid used?
Definition
  • to tx genital warts
  • not VIN
  • tx VIN w/ CO2 laswer ablation or skinning vulvectomy; however, the tx is disfiguring.

U5T51

Term
How should a white plaque on a cervix be worked up?
Definition
  • white plaque is called leukoplakia
  • regardless of the Pap result → bx lesion.

U5T51

Term
How is atypical squamous cell of unknown significance (ASCUS) tx?
Definition
  • adolescent - repeat Pap in 12 mos.
  • older women - HPV DNA testing, repeat cytology at 6 & 12 mos, or colposcopy; if HPV (-) then repeat cytology in 12 mos.

U5T52

Term
Pap protocol for newly dx HIV (+) woman.
Definition
  • normal Pap → repeat Pap in 6 months.
  • if both Paps are normal, annual surveillance.

U5T52

Term
What do punctations and mosaicism of the cervix represent? ectropion? acetowhite epithelium?
Definition
  • new blood vessels on end and on their sides.
  • ectropion - area of columnar epithelium that has not yet undergone squamous metaplasia (reddish ring of tissue surrounding the external os).
  • acetowhite epithelium - can represent dysplasia.

U5T52

Term
What are the indications for cervical conization?
Definition
  • unsatisfactory colposcopy.
  • inability to visualize entire squamocolumnar jxn.
  • bx shows severe dysplasia.
  • (+) endocervical curettage.
  • bx shows carcinoma in situ.
  • adenocarcinoma in situ on Pap; as opposed to atypical glandular cells (AGC).
  • substantial discrepancy btw Pap and bx results.

U5T52

Term
What causes endometrial hyperplasia?
Definition
  • perimonopausal women that do not ovulate regularly.

U5T53

Term
What are the risk factors for developing endometrial carcinoma?
Definition
  1. obesity, confers greatest risk (peripheral conversion of androgens to estrogen or anovulation/PCOS)
  2. nulliparity
  3. late menopause
  4. HTN
  5. exposure to unopposed estrogen (combination thx does not ↑ risk, actually ↓ risk w/ OCPs)
  6. DM
  7. Herediatary Non-polyposis Colorectal Cancer

U5T54, Kap Q0862m

Term
What percentage of complex atypical hyperplasias progress to endometrial carcinoma?
Definition
  • 28%
  • 30% of women w/ complex atypical hyperplasia will have invasive endometrial carcinoma on final pathology.

U5T54

Term
How does endometrial carcinoma present?
Definition
  • 80-90% of women w/ endometrial carcinoma present w/ vaginal bleeding or discharge as their only presenting symptom; < 5% are asymptomatic.
  • abnormal vaginal discharge
  • lower abdominal discomfort
  • ↑ uterine size

U5T54

Term
Work-up for suspected endometrial carcinoma?
Definition
  • endometrial sampling
  • if atypical cells are found → dilation & curettage
  • fi pathologic dx is confirmed → CXR (most commonly spreads to lungs).

U5T54

Term
When is a theca-lutein cyst seen?
Definition
  • in the setting of pregnancy (molar) or choriocarcinoma
  • due to gonadotropin stimulation
  • often bilateral

U5T54

Term
What is the most common cause of postmenopausal bleeding?
Definition
  • atrophy of the endometrium

U5T54

Term
What are the different ovarian masses?
Definition
  • surface epithelial tumors
  • germ cell tumors
  • sex cord-stromal tumors

  1. endometrioma - isolated collection of endometriosis involving an ovary.
  2. functional ovarian cyst - result of normal ovulation.
  3. serous cystadenoma - larger than fxnl ovarian cyst and pt may present w/ ↑ abdominal girth; cystadenocarcinoma (malignant).
  4. mucinous cystadenoma - tend to be multilocular and large; cystadenocarcinoma (malignant)
  5. dermoid (bening cystic teratoma) - contain solid components, appear echogenic on u/s, may contain teeth, cartilage, bone fat, and hair.

U5T55, pathoma p. 145-147

Term
What are the risk factors for developing ovarian cancer?
Definition
  • family hx
  • nulliparity
  • early menarche
  • late menopause
  • caucasian
  • ↑ age
  • residence in North America and Northern Europe
  • smoking is NOT a risk

  • long term suppression of ovulation is protective (OCPs that cause anovulation are protective).

U5T55

Term
What kink of tx is appropriate for a postmenopausal pt w/ dypareunia interested in resuming sexual activities?
Definition
  • estrogen cream
  • long term use of estrogen cream may require addition of progestin to prevent endometrial carcinoma.
  • water based lubricants can be helpful
  • DO NOT recommend petroleum jelly; irritates vaginal mucosa.

U6T56

Term
Tamoxifen
Definition
  • estrogen antagonist in breast
  • agonist in endometrium → endometrial carcinoma; therefore, only used for 5 years.
  • raloxifene does not ↑ risk for endometrial cancer; ↑ risk of VTE.

UW2408

Term
Which cancers are BRCA1 mutations associated with?
Definition
  • breast cancer
  • ovary and fallopian tube
  • BRCA2 has a ↓ incidence of early-onset breast cancer and a much ↓ risk of ovarian cancer.

pathoma p. 145, acog p. 290

Term
How does virilization occur?
Definition
  • female pseudohermaphrodite (XX) - ovaries present, but external genitalia are virilized or ambiguous. due to excessive androgens (congenital adrenal hyperplasia).
  • male pseudohermaphrodite (XY) - testes present, but external genitalia are female or ambiguous. most common form is androgen insensitivity. no upper 1/3 of vagina, uterus, or ovaries; gonadectomy after completion of puberty (completion of breast development and attainment of adult height); breasts develop b/c testosterone (peripheral conversion) → estrogen. no pubic or axillary hair b/c it is dependent on testosterone.
  • Müllerian agenesis (Mayer-Rokitansky-Küster-Hauser syndrome, 46XX) - idiopathic absence of Müllerian duct → absent female internal organs (ovaries present, not derived from duct system). Normal external genitalia and development of 2° sex characteristics (estrogen-mediated).
  • Aromatase Deficiency - similar to CAH, but absence of estrogen.

FA p. 539, Kap m001017, UW 4217, 3913

Term
What does the pelvic exam reveal for a woman with genuine stress incontinence?
Definition
  • protrusion of the anteroinferior vaginal wall (a cystocele).

Kap m001015

Term
Mentum anterior presentation
Definition
  • face first presentation w/ infants chin oriented towards the pubic symphisis.
  • normal vaginal delivery is possible with this position; fetus can flex its head → delivery.
  • also compound presentation (extremity prolapses alongside fetal head) can be delivered vaginally.

Kap Q0101, Q0102

Term
What does a non-reassuring fetal heart rate tracing indicate?
Definition
  • during labor uterine contractions → ↓ placental perfusion → hypoxia → anaerobic metabolism → fetal acidemia.
  • fetus can counter hypoxia by lowering heart rate (diving reflex).
  • electronic fetal monitoring is used to determine, indirectly, if the fetus is acidemic or "stressed."
  • however, many normal fetuses can have non-reassuring fetal heart rate tracings and are not acidemic or in distress; tracings are not specific.

Kap Q0119

Term
How does endometritis present?
Definition
  • presents a couple of days after delivery; cesarean section is the major risk factor.
  • endometritis is the most common cause of puerperal fever on 2nd and 3rd day postpartum.
  • fever, lower abdominal pain/uterine tenderness, foul-smelling vaginal d/c, malaise, leukocytosis.
  • abx must cover anaerobes, gram (-) & gram (+).
  • clindamycin-gentamicin.

UW 4799

Term
What is the best way to manage DVTs during pregnancy?
Definition
  • low-molecular-weight heparin
  • longer half-life and more predictable dose-response relationship when compared to unfractionated heparin.
  • also ↓ risk of thrombocytopenia
  • warfarin is contraindicated during pregnancy (nasal hypoplasia, stippled vertebral & femoral epiphyses, hydrocephaly, microcephaly, IUGR, developmental delay).

Kap Q0112

Term
What are the classic signs of uterine dehiscence after VBAC?
Definition
  • fetal bradycardia
  • decreased intensity of uterine contractions

Kap m001001

Term
What is a saline-infused sonohysterogram used for?
Definition
  • evaluate uterus and uterine cavity
  • allows for visualization of internal contours
  • provides information on tubal patency
  • part of a work-up for recurrent pregnancy loss
  • additional studies include anticardiolipin-Ab, lupus anticoagulant, TSH, thyroid perixidase-Ab, parental karyotype, fetal karyotype.

Kap m000254

Term
What causes delayed gastric empyting during pregnancy?
Definition
  • ↑ progesterone (smooth muscle relaxant)
  • before administering any anesthetics or blocks, administer antacid to prevent apiration pneumonitis.

Kap Q0110

Term
von Willebrand Disease
Definition
  • dysfunctional uterine bleeding is ofthen the presenting symptom.
  • autosomal dominant, and the most common inherited bleeding disorder.
  • usually presents w/ heavy bleeding in adolescent during their first episode of menses.
  • normal PT, normal to slightly ↑ PTT, ↑ BT

Kap s2s126m

Term
What are the signs and symptoms of ruptured vasa previa?
Definition
  • occurs with artificial or natural rupture of membranes.
  • painless vaginal bleeding (test for fetal blood with Apt test)
  • fetal tachycardia → bradycardia
  • maternal vital signs stable
  • immediate c-section!!!

Kap m000990, UW 2533

Term
How is tuboovarian abscess (TOA) tx?
Definition
  • hospitalization and IV clindamycin and gentamicin.
  • indications for inpatient clindamycin & gentamicin thx: 1) pregnancy 2) Temp > 39 °C 3) Pt w/ IUD, or 4) evidence of pelvic abscess.
  • For acute PID w/o evidence of TOA oral ofloxacin for 14 days.

Kap s2s317m

Term
What u/s findings are suggestive of retained products of conception?
Definition
  • endometrial thickness > 10 mm
  • or an intrauterine mass
  • tx: ampicillin + gentamicin + clindamycin or metronidazole.

Kap m000969

Term
Pseudohypoparathyroidism
Definition
  • aka Albright hereditary osteodystrophy, McCune-Albright syndrome, polyostotic fibrous dysplasia.
  • ↓ Ca2+, ↑ PO4 (same problem as hypoparathyroidism)
  • ↑ PTH w/ unresponsiveness of renal tubules to PTH.
  • other features: brachydactyly (short fingers/toes) of 4th & 5th digits, obesity w/ round facies, short neck, cafe-au-lait spots, precocious puberty,  subcapsular cataracts, cutaneous/subcutaneous&perivascular calcifications of basal ganglia.
  • Cushing's syndrome can occur with this disease.
  • the 3 P's: precocious puberty, pigmentation, polyostotic fibrous dysplasia.

PT-peds.10e p. 354, UW 3871

Term
How is dysfunctional uterine bleeding tx?
Definition
  • known hx of DUB, evidence of iron deficiency anemia, and moderate amount of prolonged/active bleeding → high-dose estrogen and high-dose progesterone combination orally.
  • must be hemodynamically stable.
  • BUT, if pt presents for first time with DUB (no structural or organic disease), and pt is > 35, obese, chronically HTN, or diabetic → endometrial bx.

Kap m001007, UW2391

Term
Donovanosis (aka granuloma inguinale)
Definition
  • caused by Klebsiella granulomatis
  • found in tropical or subtropical regions
  • recurrent painless ulcers, well defined bases w/ exuberant (beefy red) granulation tissue.
  • no lymphadenopathy
  • lymphogranuloma venerum also assoc. w/ painless ulcers, then 10-30 days later lymphadenitis and lymphangitis (painful).
  • syphilis is also painless and painless lymphadenopathy.

Kap s2s125m, UW 4791

Term
How is back pain in a patient with tx breast cancer worked up?
Definition
  • must suspect bone metastasis
  • radionuclide scan (sensitive)
  • X-ray films if radionuclide scan is (+) to rule out false-postive scans.

Kap Q0410m

Term
What is the natural course of lochia?
Definition
  • lochia - normal shedding of endometrium after delivery of placenta.
  • bright red blood (lochia rubra) → pinkish-brown (lochia serosa) → yellowish-white (lochia alba)
  • 4 weeks duration, but may last up to 6-8 weeks.

Kap m001002

Term
Which vaccine is recommended during pregnancy? contraindicated?
Definition
  • IM influenza vaccine is recommended
  • MMR, varicella, intranasal flu vaccines are all contraindicated b/c they are live attenuated vaccines (do not use during pregnancy).
  • However, the risk to the fetus is theoretical and if pt received MMR shortly before or after conception there is no need to terminate pregnancy; not a good reason.

Kap Q0230m, Q0500m

Term
What fetal scalp sampling value should be an indication for c-section?
Definition
  • fetal scalp sampling is used to determine acid-base status of fetus when fetal heart rate tracing is not reassuring.
  • pH > 7.25 → expectant management.
  • pH 7.20 - 7.25 → reevaluate in 15-30 min.
  • pH < 7.20 → c-section.

Kap Q0501

Term
Tx of genital warts
Definition
  • aka condyloma acuminata
  • verrucous (cauliflower-like or warty) appearance
  • tx: cryothx, laser thx, chemical destruction (trichloroacetic acid), or imiquimod.
  • Pap smear should also be done w/ complete physical exam.

Kap Q0508

Term
Normal semen analysis values
Definition
  • Volume > 2 ml
  • pH 7.2 - 7.8
  • Density > 20 million/ml
  • Motility > 50%
  • Morphology > 50%
  • 2 samples 1-2 weeks apart must be obtained before dx male factor infertility.

Kap m001011

Term
Primary vs secondary amenorrhea
Definition
  • 1° - lack of spontaneous uterine bleeding by age 16.
  • 2° - absence of a menstrual period for 3 cycles (if menses was regular) or 6 months in a woman who previously had irregular periods.
  • causes of 2° - pregnancy, hyperprolactinemia, thyroid dysfunction (hypothyroidism → anovulation).
  • if progesterone withdrawal test is (+), then endogenous estrogen is present and anovulaton is cause of amenorrhea. 
  • if progesterone withdrawal test is (-), then administer 21 days of estrogen and 7 days of progesterone → no bleeding →outflow tract obstruction or Asherman syndrome.

Kap Q0761, m001012m

Term
What risks are associated with overt hypothyroidism during pregnancy?
Definition
  • preeclampsia
  • low birth-weight
  • preterm labor
  • placental abruption

Kap s2s016

Term
What are some physical findings associated with congenital hypothyroidism?
Definition
  • umbilical hernia
  • distended abdomen
  • large head & large fontanelles
  • hypothermic
  • feeding difficulties
  • generalized hypotonia
  • coarse facial features
  • macroglossia
  • constipation and jaundice
  • bradycardia
  • most common cause is thyroid dysgenesis

PT-peds.10e p. 103, Kap q. s2s347m, UW 3662

Term
What symptoms are associated with newborn hypothyroidism?
Definition
  • jaundice
  • constipation
  • sluggishness
  • poor feeding
  • apnea
  • macroglossia
  • excessive sleepiness

PT-peds.10e p. 346

Term
Diabetic embryopathy findings
Definition
  • infants born to diabetic moms are frequently macrosomic, BUT can have other anomalies.
  • congenital heart disease (asymmetric septal hypertrophy).
  • caudal regression (hypoplastic lower extremities).
  • vertebral defects
  • single umbilical artery
  • jaundice
  • small left colon
  • renal vein thrombosis
  • hyaline membrane disease (aka infant respiratory distress syndrome) → tachypnea, retractions → progressively worsens to include  grunting, nasal flaring, cyanosis.
  • polycythemia (↑ glucose → ↑ metabolic rate → hypoxia → ↑ EPO → hyperviscosity).

PT-peds p. 357, Kap q. m000420, UW 4831, 4794

Term
Hyperemesis gravidarum
Definition
  • clinical dx - consistent hx and loss of 5% or more of pre-pregnancy weight; associated w/ ↑ βhCG (eg, twin pregnancies); presents during weeks 4-10.
  • first check βhCG levels to rule out molar pregnancies (also a cause of hyperemesis).
  • can be associated with mild elevations of liver enzymes; amylase & lipase also ↑ (from salivary gland 2° to vomiting).
  • initial tx - avoidance of triggers, ginger lollipops, tea, acupressure/puncture, and saltines w/ small, frequent meals.
  • if above measures are ineffective & nausea is the only complaint then pyridoxine (effective for nausea.
  • pyridoxine-doxylamine (B6-antihistamine combo) works for N&V.
  • if N&V still persists → promethazine.

Kap m00997, UW 4789

Term
What kind of murmurs are normal during pregnancy?
Definition
  • systolic
  • diastolic murmurs must be worked up!
  • diastolic murmurs indicate structural abnormalities (mitral stenosis 2° rheumatic fever)

Kap Q0607m

Term
At what gestational age should external cephalic version be attempted in a breech presentation?
Definition
  • > 36 weeks
  • otherwise manage expectantly
  • at < 36 weeks the fetus still has enough room to move around.

Kap m000976

Term
Which abx are contraindicated during prenancy?
Definition
  • doxycycline
  • fluoroquinolones
  • streptomycin
  • TMP-SMX during 1st trimester (folate antagonist) & 3rd trimester (↑ risk of kernicterus).

Kap Q0768, UW 4472

Term

Mittelschmerz

Spinnbarkeit

Definition
  • at ovulation, an ovarian follicle can rupture, releasing blood into the peritoneal cavity → peritoneal irritation and pain.
  • occurs for 1-2 days midcycle in menstruating females; aka midcycle pain.
  • spinnbarkeit: vaginal d/c w/ egg-like consistency, which is associated w/ ovulation.

Kap Q0378, UW 3365, 3480

Term
What maternal condition is an indication for forceps delivery?
Definition
  • mitral valve stenosis
  • valasalva maneuver should be avoided

Kap Q0286

Term
Ovarian hyperstimulation syndrome (OHSS)
Definition
  • most often occurs in pts undergoing ovulation induction w/ gonadotropins; also can occur w/ clomiphene.
  • Mild: ovaries < 5 cm and pt has mild weight gain and pelvic discomfort.
  • Moderate: ovaries can be up to 12 cm and pt has at least 10 lb weight gain, N&V.
  • Severe: ovaries > 12 cm, ascites, hydrothorax, hemoconcentration, and oliguria.
  • Do not perform pelvic or abdominal exam → rupture of ovarian capsule.
  • Severe OHSS is tx w paracentesis, thoracentesis, or surgery.

Kap Q0125

Term
Melasma
Definition
  • aka cholasma
  • disorder of pigmentation most commonly seen in darker skinned people (esp Asians).
  • common in women, particularly during pregnancy or menopause, and in pts taking OCPs.
  • worsens w/ subsequent pregnancies.
  • avoid exposure to sunlight.
  • tx - bleaching creams w/ hydroquinone.

Kap Q1034

Term
What is uterine hyperstimulation?
Definition
  1. more than 5 contractions in 10 minutes
  2. contractions lasting 2 minutes or more
  3. contractions of normal duration occuring w/in 1 minute of each other
  • AND a non-reassuring fetal heart rate tracing (2° to uterine hyperstimulation).
  • discontinue oxytocin (short half-life, 3-5 min).
  • if still no response → tocolytics (MgSO4 or terbutaline).

Kap Q0121m

Term
Hyperthyroidism during pregnancy
Definition
  • dx w/ TSH (<0.1) + free T4
  • if values are normal, but clinical picture suggests hyperthyroidism check free T3.
  • remember TBG is naturally ↑ during pregnancy.
  • tx - propylthiouracil or methimazole (safe during pregnancy).

Kap m000998

Term
α-methyldopa
Definition
  • alpha2-adrenergic agonist (centrally acting alpha adrenergic agonist → ↓ sympathetic outflow tract).
  • safe in pregnancy (category B)
  • anti-hypertensive

UW 4780

Term
When should an IUD be avoided?
Definition
  • recent hx of STD; wait 3 months.
  • copper (paragard, non-hormonal) disrupts sperm motility and viability; good for 10 years.
  • levonorgestrel (progestin) thins endometrium and inhibits secretion of FSH/LH → ↓ bleeding or amenorrhea; good for 5 years.

Kap s2s320m

Term
Trichomonas vaginalis
Definition
  • greenish-gray, frothy discharge
  • malodorous (fishy)
  • colposcopy → petechial cervical lesions (strawberry cervix).
  • sexual partner must be tx as well.
  • remember: white to gray discharge is Gardnerella vaginalis; sexual partner does not need to be tx.
  • both conditions are tx w/ metronidazole.

Kap Q0559

Term
Management of herpes during pregnancy
Definition
  • neonatal infections results when passing through vagina.
  • asymptomatic → acyclovir 3x daily from 36 weeks to prevent outbreak prior to labor.
  • c-section if genital herpes lesions or symptoms are present.

Kap s2s008

Term
How are vaginal cancers managed?
Definition
  • Stage I and II, < 2 cm → surgical resection; Stage I and II, > 2 cm → radiation thx.
  • Stage I and II: no extension to pelvic wall and no metastases.
  • SCCA of vagina is highly responsive to radiation thx.

UW 3745

Term
What can cause galactorrhea?
Definition
  • prolactinoma, dopamine suppression (anti-Ψ), imipramine (TCA), overstimulation of nipples, OCPs.
  • hypothyroidism → ↑ TSH → stimulation of lactotrophs → amenorrhea.
  • color of discharge can range from white to yellow, brown, or green.

UW 4543

Term
What is the most likely etiology of polyhydramnios and symmetric growth restriction late in the 3rd trimester?
Definition
  • trisomy 18, Edwards syndrome
  • karyotype analysis via FISH is warranted.
Term
What are the steps involved in managing postpartum hemorrhage?
Definition
  1. assess whether or not uterus is well contracted (firm fundus).
  2. ensure that no placental tissue is retained (complete/intact placenta typically rules out retained placental tissue).
  3. inspect uterus for lacerations.
Term
How can you be certain of gestational age at term?
Definition
  • one of the following criteria must be met:
  • fetal heart tones have been documented for 20 weeks by a non-electronic fetoscope or for 30 weeks by doppler.
  • it has been 36 weeks since a (+) serum or urine hCG was performed by a reliable lab.
  • u/s measurement of crown-rump length obtained at 6-12 weeks.
  • u/s at 13-20 weeks confirms gestational age of at least 39 weeks.
  • attempting to determine gestational age during the 3rd trimester is not useful; error = +/- 3 weeks.

 U2T30

Term
Management of postterm pregnancies.
Definition
  • 41 weeks (although not postterm): twice weekly NSTs and AFIs, if abnormal → deliver.
  • management at 42 weeks is controversial.
  • at 42 weeks consider induction of labor; however, if cervix is unfavorable (long & closed), chances for cesarean are ↑ when compared to postterm pts that go into spontaneous labor.
  • at 42 weeks w/ long & closed cervix → cervical ripening agent (misoprostol) → oxytocin.

U2T30

Term
What is the fibronectin test?
Definition
  • finbronectin is an extracellular matrix protein that acts as an adhesive btw the fetal membranes and underlying deciduus.
  • normally found in cervical secretions during the first half of pregnancy.
  • however, its presence during weeks 22 and 34 indicates disruption or injury to the maternal-fetal interface.
  • has a negative predictive value of 99.2%.

U2T24

Term
Placental abruption is difficult to distinguish from uterine rupture.
Definition
  • both can be caused by trauma.
  • uterine rupture: severe pain, vaginal bleeding can range from spotting to massive hemorrhage, signs of hypovolemia and shock from rapid exsanguination, retraction of presenting parts on pelvic exam, abdominal findings (irregular contour - fetal parts become more palpable).

UW 2531

Term
What is the main source of estrogen in a reproductive aged woman?
Definition
  • developing follicles

UW 3814

Term
How is delivery managed if GBS status is unknown?
Definition
  • tx w/ penicillin, ampicillin, clindamycin, cefazolin, or vancomycin.

  • tx prophylactically if GBS status unknown AND:
  • delivery at < 37 weeks.
  • duration of membrane rupture is ≥ 18 hours.
  • GBS bacteriuria in any concentration during current pregnancy.
  • prior hx of delivery of an infant w/ GBS sepsis.

UW 4757

Term
What is the difference btw adolescent acne and steroid acne?
Definition
  • adolescent: open and closed comedones and inflammatory nodules in differing stages of evolution primarily affecting the face, chest, and back.
  • steroid: aka steroid-induced folliculitis, monomorphous pink papules and absence of comedones.

UW 4812

Term
What is primary dysmenorrhea?
Definition
  • lower abdominal pain that radiates to the thighs legs, and occurs a couple hours before the onset of menstruation is classic for 1° dysmenorrhea.
  • women with this condition have ↑ levels of prostaglandins.
  • tx: NSAIDs

UW 2395

Term
What are women with mothers exposed to diethylstilbestrol during their pregnancy at risk for?
Definition
  • clear cell adnocarcinoma of vagina or cervix.
  • cervical anomalies.
  • uterine malformations.

UW 2575

Term
What are inhibin B levels a marker for?
Definition
  • used to determine ovulatory reserve.
  • the lower the level the less the reserve.

UW 3365

Term
How is chronic HTN differentiated from transient/late HTN of pregnancy?
Definition
  • if HTN is noted before 20 weeks it is either chronic HTN or a hydatidiform mole.
  • if HTN occurs after 20 weeks or during L&D with no urine protein or proteinuria < 300mg/day.

UW 4777

Term
A patient with a history of endometriosis has been unable to conceive for the better part of 2 years. Her cycles are regular every 28 days and there are no anatomical causes. The husband is normal. What is the next step?
Definition
  • tx with clomiphene
  • this can be with or without intrauterine insemination.

U3T38

Term
What are the risk factors for preeclampsia?
Definition
  1. nulliparity (think about semen exposure theory).
  2. age > 35
  3. obesity
  4. diabetes
  5. race (African American)

Kap Ob assessment

Term
When should a Pap be repeated in 4-6 weeks?
Definition
  • if patient has an infection

U5T52

Term
What is pseudocyesis?
Definition
  • a form a conversion disorder, a woman will present with all signs and symptoms of pregnancy (amenorrhea, morning sickness, abdominal distension, and self-reported (+) home pregnancy test).
  • u/s will reveal a normal endometrial stripe and negative pregnancy test.

UW 2552

Term
How do epidurals cause hypotension?
Definition
  • epidurals can block nearby sympathetic fibers → lower extremity vasodilation.

UW 4146

Term
What is fetal hydantoin syndrome?
Definition
  • midfacial hypoplasia
  • microcephaly
  • cleft lip and palate
  • digital hypoplasia
  • hirsutism
  • developmental delay
  • commonly caused by phenytoin or carbamazepine

UW2572

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