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OB/GYN FINAL EXAM
Review of Final Exam Material
163
Nursing
Undergraduate 3
11/11/2011

Additional Nursing Flashcards

 


 

Cards

Term
Subfertility definition and types
Definition
  • one year of unprotected sex with no pregnancy
  • 1. primary subfertility- no previous conceptions
  • 2. secondary subfertility- previous viable pregnancy
  • 3. sterility- known reason for subfertility
Term
Reasons for male subfertility
Definition
  • bad spermatogenesis/sperm production
  • obstructed seminiferous tubules/ducts
  • change in seminal fluid that prevents sperm motility
  • autoimmunity to immobilize sperm
  • ejaculation problem
  • inadequate sperm count
Term
Typical amount of ejaculation
Definition

20-50 mL per ejaculation

50% of sperm should be motile

Term
Cause for inadequate sperm count
Definition
  • increase in temperature
  • congenital abnormalities (cryptorchiclism- undescended testes)
  • varicocele- caricosity of sperm vein increases temp
  • trauma to testes
  • drug/alcohol use
  • x-ray exposure
Term
causes for obstruction/impaired sperm motility
Definition
  • mumps orchitis- testes inflammation and scarring
  • epididymitis
  • tubal infection (gonorrhea or ascending urethral infection)
  • benign hypertrophy in prostate
  • vasectory causes autoimmune reaction
  • anomoly of penis
    • hydospadias- urethral open on ventral penis surface
    • epispadias- urethral opening on dorsal penis surface
Term
Female subfertility causes
Definition
  • anvolution- absence of ovulation
  • tubal transport problems
  • uterine problems
  • cervical problems
Term
Causes for anvolution
Definition
  • Turner's
  • hormonal imbalance
  • hypothyroidism
  • ovarian tumor
  • stress
  • increase glucose
  • bad nutrition
  • polycystic ovary syndrom-ovaries produce excess testosterone and decreased FSH and LH
Term
Cause for female tubal transport problems
Definition
  • scarred fallopian tubes
  • chronic pelvic inflammatory disease
  • infection of pelvic organs
  • STD's or IUD's
Term
Uterine problems that cause subfertility
Definition
  • tumors
  • decreased estrogen or progesterone
  • endometriosis-implantation of uterine endometrium nodules from interior and exterior uterus
Term

Cervical problems that cause infertility

Definition
  • D and C scar tissue
  • thick cervical mucus
Term
Three fertility tests
Definition
  1. semen alaysis
  2. ovulation monitoring
  3. tubal potency test
Term
added fertility tests for males
Definition
  • HIV test
  • syphillis test
  • CBC, blood type, Rh factor
  • erythrocyte sedimentation rate (increased rate leads to inflammation)
  • protein bound idodine (tests thyroid function)
  • cholesterol levels (arterial plaques interfere with pelvic blood flow)
  • gonadotrophin and testosterone levels
Term
added fertility tests for females
Definition
  • rubella titer
  • syphillis test
  • HIV test
  • thyroid uptake determination and TSH levels
  • FSH, estroge, LH, progesteone levels
  • serum prolactin levels
  • pelvic ultrasound
Term
semen analysis description
Definition
  • 2-4 days of abstinence
  • masturbate into clean jar
  • number of sperm countes (minimum is 20 million sperm)
  • repeat after 2-3 months
Term
ovulation monitoring description
Definition
  • records basal body temperature for 4 mos each morning
  • plot on a graph
  • at ovulation, body temp decreases by .5 degrees F and increases to higher than normal body temp until 3-4 days before her next period
Term
ovulation determination test strip
Definition

increase in LH before ovulation

 

FSH abnormally high = ovaries not reponding well

Term
Tubal patency description
Definition
  • xray or ultrasound for fallopian tubes and depth of endometrial lining
  • sonohysterography- any time in cycle, non invasive, uterus filled with sterile saline, transvaginal ultrasound
  • hysterosalpingography- examine fallopian tubes, makes sure there is no reflex of menstrual debris up tubes after menstration 
  • SE: pain, risk of infection, allergic reaction, and embolism
  • CI: infectino of vagina, cervix, or uterus
Term
uterine endometrial biopsy description, CI, and risks
Definition
  • reveals endometrial problems (luteal phase defect)
  • endometrium remobed by biopsy in last 1/2 of menstrual cycle
  • done 2-3 days before menst. flow (day 25-26 of cycle)
  • paracervical block used
  • SE: discomfort, bleeding, infection, uterine perferation, spotting (call if temp over 101 F or excess bleeding/clots)
  • CI: suspected pregnancy or infection
Term
hysteroscopy
Definition
  • visual inspection of uterus through tube
Term
laproscopy
Definition
  • thin tube through incision in abdomen under umbilicus
  • examines proximity between tubes and ovaries (large distance=ovum can't enter tube)
  • done in follicular phase of menstrual flow
  • CO2 infused after procedure may escape and cause pain/bloating
  • general anesthesia used for pain
Term
Sperm are present but low
Definition
abstain from sex/masturbation for 7-10 days to increase count
Term
hormone therapy for subfertility
Definition
  • GnRH to stimulate ovulation
  • human menopausal gonadotropins (FSH, LH, hCG) to produce ovulation
  • if increased prolactin identified, Bromociptine given to decrease prolactin (allows rise of gonadotropins)
Term
assisted reproductive techniques: therapeutic insemination
Definition
  • sperm form dad/donor into partner's cervix/donor's cervix
  • frozen sperm have decreased motility
  • record BBtemp, assess mucus, predict day of ovulation and sperm is instilled
  • blood type and Rh of donor matched with woman
  • takes 6 mos to achieve insemmination 
Term
assisted reproductive technique: invitro fertilization/IVF
Definition
  • one or more mature oocytes removed from donor/woman's ovary by laposcopy and fertilized by exposure to sperm outside body
  • 40 hrs after fertilization, fertilized ova inserted into uterus
  • used if woman has damaged fallopian tubes
  • BEFORE PROCEDURE: GnRH/ovulation stimulating agent, menopausal gonadotrophin, clomiphene citrate given
  • 10th day of cycle, ovaries examined to see number and size of ovarian folicles
  • injection of hCG when follicles are mature, causes ovulation in 38-42 hrs
  • oocyte aspirated from folicle (3-12 removed) (can cause injury to corpus leutum and decrease in progesterone)
  • oocyte incubated for 8 hrs
  • 40 hrs = zygote have 1st cell division
  • progesterone given to aid implantation
  • 38-42% IVF cycle chance of pregnancy
Term
Gamete intrafallopian transfer (GIFT)
Definition
  • ova from ovaries
  • sperm given in hours
  • fertilization in fallopian tubes
  • CI: fallopian tube that is blocked (causes ectopic pregnancy)
Term
zygote intrafallopian transfer (ZIFT)
Definition
  • oocyte retrieved transvaginally with ultrasound guided apsiration
  • culture and insemmination in labratory
  • fertilized eggs trasferred by laproscopy at 24 hrs
  • fertilization outside of body (difference from GIFT)
  • CI: no functioning in fallopian tube
  • allows for genetic analysis
Term
surrogate embryo transfer
Definition
  • woman can't ovulate
  • donor oocyte
  • menstral cycle of donor and recipient synchronized with gonadotrophic hormon
  • donor's ovum removed at ovulation (transvaginal/ultrasound guided)
  • oocyte fertilized by donor/partner sperm in lab
  • placed in uterus
Term
preimplatation genetic dianosis
Definition
DNA of sperm and oocytes analyzed after fertilization in IVF and ZIFT
Term
elective terminiation of pregnancy/induced abortion
Definition
  • before fetal viability (24 wks)
  • ends pregnancy that threatens woman's life, fetus found on amniocentesis to have chromosome abnomality, rape/incest, too young, single, not wanting children, failed contraceptives, etc
  • 1st trimester abortions legal (less than 12 wks)
  • states regulate 2nd and 3rd tri abortions
Term
medically incuded termination
Definition

mifepristone

  • abortifacient, progesterone antagonist to stimulate contractions, slough endometrium, loosen trophoblast
  • used up to 49-63 days gest age
  • 600 mg PO once
  • SE: n/v, headache, diarrhea, heavy bleeding
  • Prostoglandin/misoprestol given 48-72 hrs after (400 mcg PO or 800 mcg vaginal)
  • may need D and C for heavy bleeding or Rhogam for Rh incompatibility

Methotrexate

  • antimetabolite that causes trophoblast death
  • used for ectopic pregnancy or trphoblastic disease
Term
medically induced termination SE 
Definition
  • spotting/cramping for 2 wks
  • no tampons/douche
  • acetaminophen or ibuprofen for pain (do not use aspirin, increases bleeding)
  • period in 4-6 wks
  • no sex until 2 wk post procedure checkup (avoid infection) 
  • call doc:
    • temp over 100.4
    • passing clots
    • heavy bleeding (2 pads saturated in 1 hr)
    • ab pain
    • severe depression
Term
menstrual extraction/suction evacuation
Definition
  • simple, 5-7 wks after lmp
  • woman voids, perineum washed with antiseptic
  • speculum through vagina
  • catheter into uterus that sucks lining through vaccuum
  • pain free, some cramping
  • lay supine for 15 min after until craps slow (prevents ortho hypotension)
  • Risk of hemorrhage/infection
Term
dilatation and curettage (D&C)
Definition
  • gestational age less than 13 wks
  • paracervical anesthesia
  • void, perineum washed with antiseptic
  • uterus scraped clean of zygote, trophoblasts, lining
  • stay at clinic for 1-4 hrs for monitoring
  • oxytocin to decrease bleeding
  • risk of hemorrhage/infection
  • Call doc if:
    • temp higher than 100.4
    • heavy bleeding (2 pads saturated in an hour)
    • clots
    • ab pain
    • severe depression
Term

dilatation and vacuum extraction (D&E)

 

Definition
  • 2nd tri (12-16 wks)
  • Misoprostol or laminaria tent (seaweek in cervix to absorb fluid) 24 hrs before procedure
    • dilates cervix
    • seaweed used for young moms to gradually dialate
  • antibiotic given before procedure
  • narrow suction with negative pressure evacuates uterus for 15 mins
  • pain as cervix dilates, pressure and cramps during suction
  • flat for 15 mins post procedure to prevent ortho hypotension
  • stay for 4 hrs to monitor
  • oxytocin to slow bleeding
  • risk of uterine perfusion and infection
Term
prostaglandin induction description
Definition
  • 16-24 wks
  • inpatient or outpatient
  • prostoglandin F2x injection or prostoglandin t2 suppository
    • cervix dilatation and cramping
    • expels everything
  • oxytocin in large amounts to induce labor
    • check for water intoxication or increase in body fluid (headache, confused, drowsy, edema, decrease in urine)
    • always use oxytocin as a piggyback so it can be stopped suddenly
  • examine tissue to make sure fetus was expelled
  • check for hemorrhage and DIC from prolonged labor/trauma
Term
preperation for prostoglandin induction
Definition
  • oral misoprostol or vaginal laminora for cervix dilation
  • labor takes hours after administratino of prostoglandin/misoprostol, but you can shorten this by giving dilute IV oxytocin
Term
saline induction
Definition
  • hypertonic (20%) saline fluid causes fluid shifts and sloughing of placenta and endometrium
  • preperation: void to decrease bladder size/risk of puncture
  • sterine spinal needle inserted into uterus through anesthetized ab wall
  • 100-200 mL amniotic fluid removed and replaced by the 20% hypertonic saline solution
  • labor contractions in 12-36 hrs after injection
  • SE: hypernatremia if injected into uterine blood vessle
    • body fluid shifts to blood vessles to try and = pressure
    • sx: dehydration, tachycardia, flushed face, headache
    • STOP the infusion, give 5% dextrose
Term
hysterotomy
Definition
  • gestational age more than 16-18 wks
  • removal of fetus by c-section
  • uterus resistant to oxytocin at this stage in development
  • uterus won't contract, could cause hemorrhage
Term
partial birth abortion
Definition
  • last 3 mos of pregnancy
  • congenital anomoly, incompatible with life, encepholocele meningocele
  • labor induced by oxytocin and cervical ripening
  • fetus turned breech, clamp on skull, head collapsed
Term
hormones in mestruation
Definition
  • hypothalamus produces LHRH for pituitary
  • pituitary produces gonadotrophic hormones (FSH and LH)
  • ovary produces estrogen and progesterone for uterus and pituitary
Term
uterine deviations
Definition
  • usually tipped forward
  • anteversion- too far forward
  • tretroversion- too far back
  • anteflexion- body tipped forward at junction of cervix
  • retroflexion- body tipped back at junction of cervix
Term
Four phases of menstrual cycle
Definition
  1. proliferative/estrogenic/follicular/postmenopausal
    1. immediately after start of menstrual flow, first 4-5 days of cycle
    2. thin endometrium (increases x8 by day 5-14)
    3. ovaries produce estrogen because of FSH
  2. secretory/progestational/luteal/premenstrual
    1. after ovulation
    2. formation of progesterone in corpus leutum because of LH
    3. glands of uterine endometrium twist and dilute with glycogen and mucin
    4. cappillaries increase in amount, lining rich and velvety
  3. ischemic
    1. no fertilization
    2. corpus luteum regresses after 8-10 days
    3. endometrium disinigrates (day 24-25)
    4. rupture of capillaries, minute hemorrhage, endometrium sloughs
  4. menses
    1. menstrual flow (30-80 mL blood)
    2. mucin and fragments of endometrial tissue with microscopic unfertilized ovum
    3. meses = END of cycle
    4. decrease of 11 mg iron with cycle
Term
Test for ovulation/Fern test
Definition
  • high levels of estrogen before ovulation
    • cervix mucus forms fernlike patterns caused by NaCl crystlizations on slide
  • high levels of progesterone before ovulation or at beginning of leuteal phase
    • no fern pattern, normal
    • no obulation - fern always present
Term
mucus, estrogen, and progesterone
Definition
  • high levels of estrogen at ovulation = thin mucus, good sperm survival
  • high progesterone at second half of cycle = thick mucus, poor sperm survival
Term
cervical mucus method
Definition

thick mucus before ovulation, thin mucus at ovulation

 

assess secretions each day

Term
calendar rhythm method
Definition
  • refrain from sex on days of menstrual cycle when most likely to concieve (3-4 days before ovulation and 3-4 days after ovulation)
  • ovulation - day 15 of cycle
  • find fertile time frame:
    • first fertile day = shortest cycle -18
    • last fertile day = longest cycle - 11
Term
symptothermal
Definition
take temp daily and assess vag secretions daily
Term
types of birth control pill
Definition
  • monophasic: fixed doses of estrogen and progesterone in 21 day cycle
  • biphasic: constant estrogen, increased progesterone in last 11 days
  • triphasic: varried estrogen and progesterone through entire cycle
    • mimics natural cycle
    • decreasesbreakthrough bleeding
Term
benefits of birth control pill
Definition
  • decreased dysmenorrhea, premenopausal dysmorphic syndrome and acne, iron deficiency anemia, PID, endometrial/ovarian/colon cancer, ovarian cysts, ectopic pregnancy, fibrocystic preast disease, osteoporosis, fibroid uterine tumors, rheumatoid arthritis
Term
SE of oral contraception
Definition
  • risk for thromboembolitic symptoms
  • can't be used until 2 yrs into cycle
  • not effective until 7 days post
  • nausea, weight gain, headache, breasts tender, spotting, monililial vaginal infection, mild HTN, depression
  • SERIOUS: chest pain, SOB, severe headache, leg pain, eye problems
  • will not become pregnant until 1-2 (or even 6-8) monthes after discontinuation
Term
transdermal contraception
Definition
  • slow, continuous release of estrogen and progesterone
  • each week for three weeks, no patch on 4th week
  • SE: thromboembolytic symptoms, mild irritation at patch site
  • if patch comes loose, take it off and replace to start new cycle, USE ANOTHER FORM OF CONTRACEPTION FOR ONE WEEK!
Term
vaginal ring
Definition
  • silicone ring around cervix
  • releases progesterone and estrogen
  • left in place for three weeks, removed for one week
  • avoids liver, directly to vagina (unlike pill)
  • fertility remains after discontinuation
Term
implatation as birth control
Definition
  • 5 subdermal implants in upper arm
  • contain etonogestrel (same progestin/synthetic progesterone as vag ring)
  • looks like small veins, stay in for 3-5 years
  • releases hormones, supresses ovulation, causes thick cervical mucus and change in endometrium so implantation is difficult
  • local anesthtic used during implatation and removal
  • inserted directly after elective termination or 6 wks after birth
  • cost $500
  • SE: weight gain, irregular menst cycle, depression, scarred insertion site, infection at insertion site
  • CI: desire to be pregnant in 1-2 years, undiagnosed bleeding
Term
injection for birth control
Definition
  • single IM injection of medroxyprogesterone acetate (a progesterone)
  • given q12 wks to inhibit ovulation
  • 100% effective
  • don't massage injection site
  • return to fertility in 6-12 mos after discontinued
  • SE: headache, irregular menst cycle, weight gain, depression, impaired glucose tolerance, decrease bone mineral density (increase Ca to 1200 mg/day)
Term
two types of intrauterine devices (IUD's)
Definition
  • 1. copper 7380- T shaped plastic with copper, 10 yrs effectiveness
  • 2. LNG-IUS- drug reservoir of progesterone in stem, 5 yrs effectiveness
Term
IUD description, SE, CI
Definition
  • small object in uterus
  • causes inflammation to prevent implantation
  • copper decreases sperm motility
  • inserted before sex and after period, causes sharp cramp when inserted
  • SE: PID (copper resists infection, ab tenderness, fever, increased pain on intercourse), heavy menst flow for 2-3 months, cramps and spotting, increased risk of STI
  • CI: abnormal uterus shape, severe dysmennorhea (painful mestration), menorrhagia (bleeding between periods), ectopic pregnancy history
  • if pregnancy occurs, leave IUD in or remove it to prevent infection
Term
spermacide
Definition
  • death of sperm before entering cervix and changes vaginal pH
  • doesn't protect from STI's
  • use 1 hr before sex (15 min if cocoa butter or glycerine)
  • SE: acute cervicitis, fails 20% of time
Term
diaphragm
Definition
  • placed over cervix before sex
  • fit by NP, physician, or midwife every time cervix changes or if there is a gain/loss of more than 15 lbs
  • remains in place for 6-24 hrs after sex
  • left in for over 24 hrs = stasis of fluid, cervical inflammation and erosion, urethral irritation
  • remove with finger, wash with soap, dry, put in case
  • lasts for 2-3 years
  • not effective if odd uterus shape or if woman is in superior position during sex
  • SE: UTI's
Term
Cervical cap
Definition
  • soft rubber over uterine cervix
  • 26% failure rate
  • cervix may be too short
Term
vasectomy
Definition
  • small incision in each side of scrotum
  • vas deferens cut, tied, cauterized, or plugged
  • local anesthesia
  • analgesia and ice for pain
  • fertile for 6 mos, must have 2 (-) sperm reports
  • can have sex within one week after procedure
  • SE: hematoma, kidney stones, chronic pain, autoimmunity against own sperm
Term
tubal ligation
Definition
  • fallopian tubes occluded by cauterizing, crushing, clamping, or blocking
  • prevent passage of sperm and ova
  • decreases risk of ovarian cancer
  • laproscopy
    • after menst flow, before ovulation
    • 1 cm incision under umbilicus
    • general/local anesthesia
    • laproscope through incision locates fallopian tube
    • electric current to coagulate dissue
  • SE: bloating from CO2, bowel perferation, hemorrhage, risk of general anesthesia
  • sex two days after procedure
Term
dystocia
Definition
  • difficult/dysfunctional labor
Term
four causes of labor complications
Definition
  1. problem with contractions
  2. problem with passenger/fetus
  3. problem with birth canal
  4. problem with women's psyche
Term
ineffective uterine force: three types of problems
Definition
  1. hypotonic contractions- number of contractions low or infrequent
  2. hypertonic contractions
  3. uncoordinated contractions
Term
hypotonic contractions
Definition
  • less than 2-3 contraction sin 10 minutes
  • resting tone of uterus less than 10 mmHg
  • strength of contractions less than 25 mmHg
  • usually occurs in active phase
    • after analgesia
    • start with dilation less than 3-4 cm
    • bowel or bladder distension
    • overstretched uterus (high parigy, multiples, hydramnios)
  • increases length of labor
  • Tx: oxytocin
Term
hypertonic contractions
Definition
  • increased resting tone, over 15 mmHg
  • frequently seen in latent phase
  • muscle fivers don't repolorize or relax after contraction
  • painful (anoxia) and can lead to fetal anoxia
  • Tx: sedation or c-section (if FHR low or 1st stage labor doesn't progress)
Term
uncoordinated contractions
Definition
  • more than one pacemaker initiating contractions
  • close together
Term
normal upper limits for each of the stages in 1st stage labor
Definition
  1. latent: 
    1. nullipara: 8.6 hrs (avg) 20 hrs (upper limit)
    2. multipara: 14 hrs (avg and upper limit)
  2. active:
    1. nullipara: 5.8 hrs (avg) 12 hr (upper limit)
    2. multipara: 2.5 (avg) 6 hr (upper limit)
  3. transitional:
    1. nullipara: 1 hr (avg) 1.5 hr (upper limit)
    2. multipara: 15 min (avg)
Term
prolonged latent phase cause and treatment
Definition
  • ineffective contractions
  • longer than 20 hr null or 14 hr multi
  • cx: 
    • cervix not ripe
    • excess analgesia
    • contract less than 15 mmHg
    • hypertonic contractions
    • inadequate relaxation periods
  • tx: 
    • help uterus relax
    • fluids
    • morphine sulfate for pain relief
    • change linen, darken room, decrease noise
    • c-section, amniotopy, oxytocin
Term
prolonged active phase cause and treatment
Definition
  • longer than 12 hr null or 6 hr multi
  • Cx:
    • cephalopelvic disproportion
    • hypotonic contractions
    • fetal malposition
    • no cervical dilation
      • less than 1.2 cm/hr null or 1.5 cm/hr multi
  • Tx:
    • ultrasound to rule out cephalopelvic disproportion
    • oxytocin
    • c-section
Term
secondary arrest of dilatation
Definition

no progress in cervical dilation for longer than 2 hrs

 

tx: c-section

Term
dysfunctions in second stage of labor
Definition
  • prolonged descent
  • arrest of descent
  • deficient fluid volume
  • contraction rings
  • precipitate labor and birth
  • uterine rupture
  • inversion of uterus
  • amniotic fluid embolism
Term
prolonged descent (2nd stage labor)
Definition
  • less than 1 cm/hr null or 2 cm/hr multi
  • contractions are good quality and duration, effacement and dilation begin
  • contractions become poor quality and dilatation stop
  • rule out cephalopelvic disproportion or poor fetal presentation
  • tx: 
    • fluid for hypertonic contractions
    • rupture membranes 
    • IV oxytocin
    • semi fowlers, squat, kneel
Term
arrest of descent (2nd stage labor)
Definition
  • no descent occurs within 2 hr null or 1 hr multi
  • failure: expected descent does not begin, no engagement
  • Cx: cephalopelvic disproportion
  • Tx: c-section
Term
risk for deficient fluid volume (second stage labor)
Definition
  • low levels of serum electrolytes or body fluid
  • cx: 
    • interval between eating and labor 
    • nausea and vomitting
  • test for voiding, clucose, protein, ketones, specific gravity
  • decreased fluid volume increases blood viscosity and the risk of thrombophlembitis
  • Tx: IV fluid
Term
contraction rings (second stage labor)
Definition
  • hard band across uterus at junction of upper and lower segments, interferes with descent
  • pathologic retraction ring most common (horizontal ab indent, excess retraction of upper segment)
  • Cx: 
    • early labor uncoordinated contractions
    • pelvic division of labor = obstetric manipulation or oxytocin
  • identified through ultrasound
  • Tx:
    • IV morphine sulfate or inhaled amylnitrate
    • tocolytic to halt contractions
    • c-section
  • Can lead to uterine rupture or neurologic damage to fetus or massive hemorrhage (placenta can't be delivered)
Term
precipitate labor/birth (second stage labor)
Definition
  • Cx:
    • strong contractions and woman gives birth with only a few rapid contractions
    • less than 3 hrs
  • precipitate dilatatioin= more than 5 cm/hr prima or 10 cm/hr multi
    • Cx: high parity, amniotomy, oxytocin
  • can cause premature placenta seperation, hemorrhage, lacerations
Term
Induction and augmentation of labor
Definition
  • induction of labor- labor is started artificially
  • augmentation of labor- assisting labor that started spontaneously but isn't effective
Term
induction of labor is needed when:
Definition
  • fetus is at term
  • preeclampsia
  • eclampsia
  • severe HTN
  • postmaturity (past 42 wks)
  • diabetes
  • Rh sensitization
  • prolonged ROM
    intrauterine growth restriction 
Term
augmentation of labor needed when:
Definition
hypotonic or infrequent contractions
Term

risks for induction and augnmentation of labor

 

use cautiously in...

Definition
  • uterine rupture
  • decreased fetal blood supply from poor cotyledon filling
  • premature placental seperation
USE CAUTIOUSLY in high parity, multiple gestation, hydramnios, uterine scars, advanced maternal age
Term
before induction, these conditions must be present:
Definition
  • longitudinal lie
  • ripe cervix
  • engaged
  • no cephalopelvic disproportion
  • mature fetus and l:s ratio
Term
Cervical ripening scoring
Definition
  • each category scored from 0-3, total score needs to be 8 or more to be considered a ripe cervix
  1. dilatation (0=0cm, 1=1-2 cm, 2= 3-4 cm, 3 = 3-4 cm)
  2. effaced (0= 0-30%, 1=40-50%, 2=60-70%, 3=80% or more)
  3. station (0=-3, 1=-2, 2=-1-0, 3= +1 or +2)
  4. consistency (0=firm, 1 = medium, 2 = soft)
  5. position (0=posterior, 1= mid, 2 = anterior)
Term
methods of ripening cervix
Definition
  • strip membranes (seperate membranes from lower uterine segment manually)
  • hygroscopic suppository to urge dilation
  • prostoglandin gel/misoprostol
    • interior or external surface of cervix 
    • 2-3 total doses given q6hr
    • SE: vomit, fever, diarrhea, HTN
    • oxytocin started 6-12 hrs after last prostaglandin dose
    • CI: past c-sections
Term

oxytocin  for induction of labor

dosing and set up

Definition
  • administered by piggyback IV (in port closest to woman) for easy discontinuation
  • half life of 3 min
  • pitocin (form of oxytocin) mixed with 10 IU in 1000 mL Ringers
  • 15 IU oxytocin to 250 mL of IV solution (60 mU/1mL concentration)
  • infusions start at .5-1 mU/min
    • no response, increase every 15-60 min by 1-2 mU/min until contractions begin
    • most women respond at 16 mU/min
    • 20 mU/min can cause tetanic contractions
Term
SE of oxytocin 
Definition
  • SE: hypotension, decrease uterine blood flow, antidiuretic, water intoxication, headache/vomit (HALT INFUSION), seize, coma, death, hyperbillirubin and jaundice in infant
  • contractions shouldn't:
    •  occur more than every 2 min
    • be stronger than 50 mmHg
    • last more than 70 sec
    • resting pressure shouldn't be more than 15 mmGg
  • if stopping oxytocin doesn't stop hyperstimulation, give the antidote (beta adrenergic receptor drug like terbutaline sulfate or magnesium sulfate) to decrease myometrial activity 
Term
augmentation of labor with oxytocin
Definition
monitor FHR
Term
active management of labor 
Definition
  • aggressive administration of oxytocin (increase by 6 mU/min)
  • shortens labor to 12 hrs
  • decrease risk of c-section, postpartal infection, postpartalfevers, dehydration
  • maximum dose should be 36-40 mU/min
Term
uterine rupture Cx
Definition
  • vertical scar from c-section or hysterectomy tear
  • prolonged labor
  • multiple gestation
  • abnormal presentation
  • unwise oxytocin
  • obstructed labor
  • forceps
5% of maternal deaths
 
uterus has more strain than it can sustain
 
sometimes preceded by sudden tearing pain, pathologic retraction ring, and strong contractions
Term
Two types of uterine rupture
Definition
  1. complete
    • contractions immediately stop
    • two sellings on abdomen (retracted uterus and extrauterine fetus)
    • hemorrhage and shock (tachycardia, weak pulse, hypotension, cold/clammy skin, air hunger)
    • FHR absent
  2. incomplete
    • localized tenderness/aching of lower uterine segment
    • no FHR and contractions
Term
Tx of ruptured uterus
Definition
  • fetal death folllows unless c-section performed
    • c-section hysterectomy to remove damaged uterus or tubal ligation at time of laparotomy
  • IV oxytocin to minimize bleeding
  • viability of fetus depends on extent of rupture and EBL
 
Woman can't conceive after rupture UNLESS it was in inactive lower segment
Term
inversion of uterus
Definition
  • uterus turns inside out with birth of of fetus or delivery of placenta
  • Cx: 
    • traction applied to umbilical cord to remove placenta
    • pressure to fundus so fetus pulls fundus down at birth
  • can be totally inverted and protrude from vag or just lie in uterine cavity
  • large amount of blood from vagina in sudden gush
  • Sx of bloood loss (hypotension, pale, dizzy, sweat)
  • NEVER try and replace uterus, it just causes more blood loss
  • Tx: 
    • IV fluid
    • oxygen by mask
    • general anesthesia
    • NG or tocolytic
    • oxytocin after replacing fundus
    • antibiotics for exposed uterus
    • CPR
    • c-sections needed for future pregnancy
Term
Amniotic fluid embolism
Definition
  • occurs when am flu is forced into an open maternal uterine blood sinus through defect in membranes or AFTER membrane rupture/partial premature seperation of placenta
  • Cx: oxytocin, abruptio placentae, hydramnios
  • Sx: sharp chest pain, can't breath, going from pale to blue/grey coloring
  • Tx: oxygen through mask, CPR
INCREASES RISK FOR DIC
Term
Prolapsed cord definition
Definition
loop of umbilical cord loops in front of presenting part
Term
causes of prolapsed umbillical cord
Definition
  • premature ROM
  • non cephalic presentation
  • small fetus
  • cepholopelvic disproportion
  • placenta previa
  • intrauterine tumors
  • hydramnios
  • multiple gestation
Term
Tx for prolapsed cord
Definition
  • relieve pressure on cord to prevent fetal anoxia (knee to chest or trendelenborg position)
  • 10 L/min O2 in mask
  • if cord is exposed to room air, don't push it back in (can cause kinking)
  • cover cord with sterile saline compress to prevent drying
  • iff fully dilated, use forceps to birth baby
  • incomplete dilation = upward pressure on presenting part until c-section
  • amnio infusion- adds sterile fluid to uterus to supplement am flu through catheter
    • normal saline or lactated ringers, 500 mL
    • lie in lateral recumbant to prevent hypotension
    • check for infection signs
  • fetal blood sampling
    • PO2 and PCO2, pH, O2 sat, Hct
    • hypoxic fetus = acidic or lower than normal pH (less than 7.2)
Term
multiple gestation
Definition
  • c-sections decrease risks
  • anemia and preg HTN occur commonly (assess Hct and BP)
  • increase risk for cord prolapse because of small fetal head
  • uterine dysfunction from long labor
  • most twins have vertex presentation
  • after 1st infant is born, both ends of cord are tied permenantly (not with clamps that could slip) to prevent hemorrhage
  • lie of 2nd twin analyzed by palpation and ultrasound
    • oxytocin to assist contractions, Nitro Glycerin  to relax uterus
  • sometimes placenta of 1st infant separates before 2nd fetus is born, causes hemorrhage
    • difficult because uterues can't contract due to second fetus
    • if placenta is shared, FHR of other babies are absent
    • c-section
Term
occipitoposterior position
Definition
  • ROP or LOP
  • fetus must do internal rotation of 135 degrees (normal is 90 degrees)
  • mom can squat, hands on knees position, or lie on L if ROP or R if LOP
  • Cx:
    • mom has android, anthropoid, or contracted pelvis
  • posterior isn't as snug as anterior (risk of prolapsed cord and long labor)
  • fetal head rotates against sacrum = maternal lower back pain
    • counterpressure, back rub, heat and cold, lie on side or hands and knees, void q2hr, IV glucose
Term
breech presentation
Definition
  • Cx:
    • gestational age less than 40 wks
    • ancepholy, hydrocephalus, meningocele
    • hydramnios
    • congenital anomoly of uterus (mid septum)
    • mass in pelvis
    • pendulous abdomen/lax abdomen muslces
    • multiple gestation
  • most preg are breech in early preg but turn cephalic by 38 wks
  • types: frank, footling, or complete
  • increases risk for prolapse cord/anozia, injury to head/incracranial hemorrhage, fracture of spine/arm, dysfunctional labor, early ROM
  • FHR sounds in upper abdomen
  • full dilation means it is ok to be born vaginally
  • pressure of passing head on cord
Term
face presentation 
Definition
  • head that feels prominent with no engagement in Leopold maneuvers
  • concave back 
  • ultrasound done
    • if the chin is posterior, do a c-section
  • vaginal birth = facial edema and bruising
Term
brow presentation
Definition
  • rarest form
  • Cx: multipara, relaxed ab muscles
  • causes obstructed labor (head jammed in brim of pelvis)
  • c-section done
  • bruising on fontanelle and face
Term
transverse lie
Definition
  • Cx: pendulous abdomen, uterine tumors, contraction of pelvic brim, congenital abnormality of uterus, hydramnios, hydrocephalus, premature infant, multiple gestation, short cord
  • horizontal in leopolds or ultrasound
  • c-section
  • risk for early ROM, cord prolapse, shoulder obstructions
Term
oversized fetus/macrosomia
Definition
  • 4000-4500 g or 9-10 lb
  • Cx: diabetes/gestational diabetes, multiparity
  • Increased risk for: overstretched uterus, uterine rupture, fractured clavicale, hemorrhage
  • c-section
Term
Shoulder dystocia
Definition
  • occurs in 2nd stage of labor
  • shoulders too big for pelvic outlet
  • can cause fractured clavical or brachial plexus injury
  • Cx: diabetes, multiparas, post term birth
  • increased risk for prolonged 2nd stage, arrest of descent, retracting/turtling head
  • Tx: flex thighs sharply on abdomen (McRoberts maneuver) to widen pelvic outlet
Term

hydrocephaly

 

anecephaly

Definition

hydrocephaly= fluid filled ventricles

 

anencephaly = absence of cranium

Term
Inlet contraction
Definition
  • narrowing of anteroposterior diameter to less than 11 cm or transverse diameter to less than 12 cm
  • Cx: rickets
  • prima = head engages btwn 36-38 weeks before labor begins
    • if engagement doesn't occur, there may be a fetal or pelvic abnormality 
    • engagement does not begin until labor in inlet contraction
Term
outlet contraction
Definition

narrowing of transverse diameter at outlet to less than 11 cm

 

 

Term
Trial labor
Definition
  • if inlet measure and fetal lie are good, trial labor is used to assess if labor can progress
  • continues as long as descent of presenting part and dilation of cervix continues
  • monitor FHsounds and uterine contractions
  • woman should void q2hr
c-section used if no adequate progress in 6-12 hrs
Term
external cephalic version
Definition
  • turning of fetus from breech to cephalic before birth
  • as early as 34-35 wks, usually at 37-38 wks
  • FHR and ultrasound
  • tocolytic used to relax uterus
  • gentle pressure on abdomen to rotate fetus
  • CI: multiple gestations, oigohydramnio, vaginal birth, cord around neck, 3rd tri bleeding (placenta previa)
  • rhogam given if Rh-
Term
Things that must be present before forceps are applied
Definition
  • membranes ruptured
  • cephalopelvic disproportion not present
  • cervix fully dilated
  • bladder empty
Term
forceps are necessary when:
Definition
  • woman is unable to push with contraction in pelvic division of labor
  • cessation of descent in 2nd stage
  • abnormal position/immature fetus
  • fetus is in distress (prolapsed cord, etc)
Term
Forceps procedure
Definition
  • may lead to rectal sphincter tears (dyspareunia, anal incontinence, urinary stress incontinence)
  • good way to reduce pressure on fetal head and avoid subdural hemorrhage
  • forceps applied after head reached perineum
  • low forceps birth= head at 2+ or more
  • mid forceps birth = head at +2 or less
  • episiotomy and anesthesia (at least pudendal block) used
  • record FHR before and after forceps (prolapsed cord can occur)
  • record time of first void after procedure to rule out bladder damage
  • make sure no laceration
  • check for facial palsy and subdural hematoma on newborn
  • marks on fetal head/cheeks fade in 1-2 days
Term
vaccum extraction 
Definition
  • fetal head at perineum, disk shaped cup on posterior fontanells, vacuum applied, fetus extracted
  • little anesthesia to reduce chance of respiratory distress
  • few lacerations
  • causes marked caput on fetal head with some swelling
  • CI: premature infant
Term
placenta succentriata
Definition
  • placenta with one or more accessory lobes connected to the main placenta by blood vessles
  • doesn't cause fetal abnormality
  • small lobes may be retained
Term
placenta circumvallata
Definition
  • normally, chorion membrane begins at edge of placenta and spreads to envelop fetus
    • in placenta circumvallata, no chorion covers fetal side of placenta
    •  cup-shaped placenta having raised edges and a thick, white, opaque ring around its periphery
    • umbilical cord enters placenta at midpoint
    • large vessels spread but end where chorion folds back onto surface
Term
placenta marginata
Definition
fold of chorion reaches to end of placenta
Term
battledore placenta
Definition

cord inserted marginally instead of centrally

 

very rare

Term
velamentous insertion of cord
Definition

cord seperates into small vessles before inserting into placenta

 

Cx: multiple gestation

 

causes fetal anomalies

Term
vasa previa
Definition
placenta delivered before fetus
Term
placenta accreta
Definition

deep attachemtne, doesn't remove manually

 

causes hemorrhage

 

Tx: hysterectomy or methotrexate

Term
two vessle cord
Definition

absence of an artery

 

causes heart and kidney anomalies

Term
short cord
Definition
causes premature seperation of placenta or abnormal fetal lie
Term
post partal hemorrhage EBL
Definition
over 500 mL
Term
post partal hemorrhage timing
Definition
happens between birth and 6 wks after birth
Term
five causes for post partal hemorrhage
Definition
  1. laceration
  2. uterine atony
  3. retained placental fraggments
  4. uterine inversion
  5. DIC
Term
uterine atony definition
Definition
  • relaxation of uterus 
  • abrubt rush of blood vaginally
  • most frequent cause of hemorrhage
Term
Cx of uterine atony
Definition
  • anything that distends the uterus beyond capacity:
    • multiple gestation
    • hydramnios
    • large baby
    • uterine tumors
Term
Tx uterine atony
Definition
  • treat blood loss (Sx of shock and gluid loss)
  • weigh/count saturated pads to find EBL
    •  
  • when you know it is hemorrhage:
    • palpate/massage uterus/fundus
    • observe fundal height and lochia 
    • dilute IV oxytocin/pitocin (10-40U/1000 mL Ringer's Lactate in one hour)
    • hemabate/carboprost tromethamine (a prostaglandin) q15-90 min for 8 doses OR methylorgonovine meleate IM shot or rectal misoprostol (a prostaglandin) or prostoglandin F22 IM shot
      • do not give if woman has HTN
      • SE of prostoglandin F22 IM shot: n/v, diarrhea, tachycardia, HTN
    • bed pan to ensure voiding or ambulate to bathroom q4h
    • oxygen at 4L/min
    • bimanual massage (hand in vagina while pressure on outside ab)
    • analgesia, anesthesia, and uterine packing
    • blood replacement
    • hysterectomy and suturing
    • watch for embolism of pelvic uterine rupture
Term
Cx of lacerations
Definition
  • operative or rapid birth
  • primigravidas
  • large infant
  • lithotomy position
  • instruments used
Term

cervical lacerations 

definition and Tx

Definition
  • on sides near branches of uterine artery
  • arterial bleeding (bright red)
  • Tx
    • repair is difficult because of bleeding
    • regional anesthesia
Term
vaginal lacerations
Definition
  • rare, hard to repair
  • packed after repair
  • catheter for voiding
Term
degrees of perineal lacerations
Definition
  • 1st degree: vaginal mucous membrane and skin of perineum to fourchette
  • 2nd degree: vaginal mucous membrane, perineal skin, fascia, levator muscle, perineal body
  • 3rd degree: entire perineum to external sphincter of rectum
  • 4th degree: entire perineum, rectal sphincter, some of rectum mucous membrane 
Term
Tx for laceration
Definition
  • like an episiotomy repair
  • increase fluids, use stool softener for a week
  • no enemas, rectal temps, or suppositories in 3rd or 4th degree laceration
Term
Retained placental fragments Cx
Definition
  • conditions that vary placenta site/attachment:
    • placenta previa
    • placenta accreta
    • premature seperation
    • succenturiate placenta (accessory lobes)
  • conditions that leave uterus unable to contract readily:
    • anesthesia/analgesia
    • oxytocin
    • high parity
    • advanced maternal age
    • previous uterine surgery
    • long/difficult labor
    • chorioamniocentesis
    • maternal illness
    • Hx of postpartum hemorrhage
    • endometritis
    • magnesium sulfate or tocolytics
  • ultrasound or blood sample that contains hCG means there is a retained placenta
Term
retained placental fragments Tx
Definition
  • manual removal
  • D and C
  • balloon occlusion and embolism of internal iliac arteries
  • methotrexate to destroy remaining placenta
Term
uterine inversion definition
Definition
  • prolapse of fundus of the uterus through the cervix 
  • uterus turns inside out
Term
DIC definition and Cx
Definition
  • definiciency of clotting caused by vascular injury
  • caused by premature placental seperation, missed early miscarriage, fetal death
Term
subinvolution definition, Cx, and Tx 
Definition
  • incomplete return of uterus to prepregnancy shape
  • soft and enlarge uterus with lochia at 4-6 wks
  • Cx:
    • retained placenta
    • endometritis (infection of endometrium)
    • uterine myoma/tumors
  • Tx: 
    • methylergonovine PO .2mg q.i.d. to improve tone and involution
Term
perineal hematoma definition and Tx
Definition
  • blood in subq perineum
  • pain/pressure
  • 2-8 cm firm globe
  • Tx:
    • analgesia
    • ice pack
    • absorbed in 3 days-6 wks
Term
puerperal infection definition and risk
Definition
  • infection of reproductive tract
  • risk:
    • ROM over 24 hrs before birth
    • retained placenta fragments
    • postpartal hemmorhage
    • anemia
    • prolonged and difficult labor
    • internal FHR
    • local vaginal infection at time of birth
    • edema and trauma
Term
puerperal infection most likely because of:
Definition
staph or ecoli
Term
puerperal infection Tx and precautions
Definition
  • IV antibiotics (can cause thrush on infant's tongue if breastfeeding)
  • can decrease breast milk
  • isolation if temp over 100.4 F twice in 24 hrs
  • can hold child if it is a closed infection
Term
endometritis Sx and Tx
Definition
  • infection of endometrium (lining of uterus)
  • Sx:
    • fever on 4th post partum day (over 100.4 for 48 hrs)
    • WBC elevated to 20-30,000
    • chills, decreased appetite, tired, painful uterus not contracted, dark brown lochia
  • Tx:
    • antibiotic
    • oxytocic agent (methylergonovine)
    • fowler's to encourage lochia drain
Term
infection of perineum Tx
Definition
  • suture lines from episiotomy or laceration
  • Tx:
    • remove sutures and drain/pack
    • systemic or topical antibiotic
    • analgesia
    • sitz bath
Term
peritonitis definition and Sx
Definition
  • infected peritoneal cavity
  • major cause of death (lymphatic system)
  • Sx:
    • guarding/ab pain
    • high fever
    • rapid pulse
    • vomit
    • uterus not contracted
    • paralytic ileus (blocked/inflammed intestines)
Term
peritonitis Cx 
Definition
occurs as extended endometritis
Term
peritonitis Tx
Definition
  • NG tube
    • bowel rest
    • prevents vomitting
  • becomes infertile because of adhesions on fallopian tubes
Term
thrombophlebitis definition 
Definition
  • inflammation of blood vessle lining with formation of blood clots
Term
Thrombophlebitis types:
Definition
  • superficial vein disease 
  • deep vein thrombosis
  • femoral thrombophlebitis
  • pelvic thrombophlebitis
Term
causes of Thrombophlebitis
Definition
  • endometrial infection
  • high fibrinogen levels (increase clotting)
  • dilation of lower extremity veins
  • inactivity (pooling in lower extremities)
  • obesity
  • cigarrettes
  • varicose veins
  • previoius thrombophlebitis
  • high parity
  • older than 35 yrs
Term
femoral thrombophlebitis description and Sx
Definition
  • femoral, saphenous, or popliteal vein
  • inflammation in vein with accompanying arterial spasm
  • decreased venous and arterial circulation and edema 
  • Sx:
    • increased temp
    • chill
    • painful and red legs for ten days
    • swelled, shiny, white skin
    • positive Homan's sign
Term
Tx and Dx of Femoral Thrombophlebitis
Definition
  • Dx: doppler and ultrasound
  • Tx:
    • bed rest with affected leg elevated
    • anticoagulants for 3-6 mos
    • heat
    • NEVER MASSAGE CLOT (could cause PE)
    • 4-6 wks to resolve
Term
Pelvic thrombophlebitis Sx and Tx
Definition
  • ovarian, uterine, hypogastric vein
  • same risk factors as femoral thrombophlebitis
  • 14-15th day post partum
  • lasts 6-8 wks
  • Sx:
    • very acutely ill
    • high fever
    • chills
    • malaise
    • pelvic, lung, heart, kidney absess
  • Tx: located by sonogram, incised by laporotomy
Term
Pulmonary emobilism description, Sx, Tx
Definition
  • obstruction of pulmonary artery as complication of thrombophlembitis
  • Sx: 
    • sudden chest pain
    • tachypnea
    • tachycardia
    • orthopenia (only breathe upright)
    • cyanosis
  • Tx:
    • oxygen
Term
mastitis description, timing, Sx
Definition
  • infection of breast
  • 7th day post partum-months after birth
  • Sx:
    • red, swollen breasts
    • fever
    • scant milk
Term
mastitis prevention and Tx
Definition
  • prevntion
    • correct latch
    • release grasp before detaching
    • wash hands
    • expose nipples to air
    • vit e ointment
  • cause: staph aureus from infant's nose or candiddiasis
  • Tx:
    • antibiotics against penicillen resistant staph (cephalosporin or dicloxacillin) 
    • ice and supportive bra
    • will relieve in 2-3 days
Term
urinary retnetion cause
Definition

inadequate bladder emptying

anesthesia causes overdistention

Term
primary overdistention
Definition
  • woman can't void at all for more than 8 hrs
Term
urinary retention and overflow
Definition
  • woman is able to void
  • infrequent and inadequate voiding
  • less than 100 mL per void
Term
UTI Sx and Tx
Definition
  • Sx:
    • burning
    • blood
    • frequency
    • low grad fever
    • lower ab pain
  • Tx:
    • sulfa drugs (CI for breastfeeding)
    • antibiotics
Term
Postpartum induced HTN or PIH Cx, Sx, Tx
Definition
  • Cx: placenta retention
  • Sx: mild HTN after birth, proteinuria, edema
  • Tx: antihypertensive, D and C
  • can cause seizures 6-24 hrs post birth
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