Shared Flashcard Set

Details

USMLE Step 2 - B
USMLE Step 2
154
Medical
Graduate
09/24/2013

Additional Medical Flashcards

 


 

Cards

Term
Your patient had an MI. When is he eligible for noncardiovascular surgery?
Definition
  • must defer surgery for 6 mos
  • pt should have a stress test at that time

MTB p. 379

Term
If a patient has a history of cardiac disease, which tests are required prior to surgery?
Definition
  • EKG
  • stress testing
  • echo for structural disease and to assess ejection fraction.

MTB p. 380

Term
What are the ssx of pulmonary contusion?
Definition
  • not clinically evident immediately after injury
  • hours later → hypoxia and respiratory distress 2° to pulmonary edema setting in.
  • pulmonary edema can be hastened by IV fluids.

UW4537

Term
What must be considered if tachypnea lasts > 4 hrs in a newborn?
Definition
  • sepsis
  • blood and urine cultures.
  • LP is newborn displays neurological signs such as irritability, lethargy. temp irregularity, and feeding problems.

MTB p. 407

Term
What is the difference between Erb-Duchenne palsy and Klumpke paralysis?
Definition
  • Erb (C5-6): waiter's tip appearance 2° to shoulder dystocia (anterior shoulder gets stuch behind pubic bone); infant unable to abduct or externally rotate & supinate arm.
  • Klumpke (C7-8, T1): claw hand with Horner's syndrome (ptosis, miosis, anhydrosis).

MTB p. 408

Term
What are the hallmark features of neuroblastoma?
Definition
  • hypsarrythmia (dancing eyes)
  • opsoclonus (dancing feet)
  • ↑ vanillyl mandelic acid (VMA) and metanephrines

MTB p. 410

Term
What congenital heart conditions → holosystolic murmurs?
Definition
  • there are only 3
  • mitral regurgitation
  • tricuspid regurgitation
  • VSD (common in Down-21, Edward-18, Patau-13)

MTB p. 413

Term
How is congenital adrenal hyperplasia dx at birth?
Definition
  • serum electrolytes
  • ↑ 17-OH progesterone

MTB p. 431

Term
What 2 congenital heart conditions can → pulmonary HTN?
Definition
  • truncus arteriosus (there is only 1 semilunar valve)
  • VSD → Eisenmenger syndrome

MTB p. 415

Term
12-year-old boy with syncope, hearing loss since birth, family hx of sudden cardiac death, AVSS on exam.
Definition
  • Long QT syndrome
  • there are 13 differenty types, but no the above presentation.

MTB p. 418

Term
What are the radiologic signs frequently associated with pyloric stenosis?
Definition
  • String sign: thin column of barium leaking through tightened muscle.
  • Shoulder sign: filling defect in antrum due to prolapse of muscle inward.
  • Mushroom sign: hypertrophic pylorus against duodenum.
  • Railroad track sign: excess mucosa in pyloric lumen → 2 columns of barium.
  • pyloric stenosis presents not at birth, but by the first month of life.
  • auscultation will reveal a succussion splash: sound of stomach contents slapping into pylorus.

MTB p. 421

Term
CHARGE and VACTERL syndrome
Definition
  • Coloboma
  • Heart defects
  • Atresia of Choanae
  • Retardation of growth or development
  • Genital or urinary defects (hypogonadism)
  • Ear anomalies/deafness
  1. Vertebral anomalies
  2. anal atresia
  3. cardiovascular anomalies
  4. tracheoesophageal fistula
  5. esophageal atresia
  6. renal anomalies
  7. limb anomalies

MTB p. 422

Term
What is the most common electrolyte abnormality with vomiting?
Definition
  • hypochloremic, hypokalemic, metabolic alkalosis

MTB p. 421

Term
What is intussusception associated with?
Definition
  • Rotavirus vaccine
  • Henoch-Schölein purpura
  • most commonly, however, with polyp, hard stool, or lymphoma.
  • 10% will recur within 24hrs, child must be carefully observed.

MTB p. 425

Term
X-linked hypophosphatemia
Definition
  • innate kidney defect where it is unable to retain phosphate.
  • vitamin D → reabsorption of both Ca2+ and PO4-
  • normal calcium
  • normal levels of 25(OH)-vitamin D and 1,25(OH)2- vitamin D.
  • lack of PO4-→ inadequate bone mineralization

MTB p. 431

Term
What must you consider when a vignette describes a febrile seizure?
Definition
  • sepsis
  • sepsis workup: CBC w/ diff, urine culture, UA, CXR, and LP.
  • irritability or lethargy, also think meningitis
  • tx: ampicillin and gentamicin

MTB p. 433

Term
What prophylactic abx should be administered to close contacts of a child with epiglottitis?
Definition
  • Haemophilus influenza type B
  • rifampin for close contacts
  • child: after intubation in OR → ceftrixone 7-10 days

MTB p. 436

Term
Describe the gravidity/parity nomenclature
Definition
  • G = # of pregnancies
  • P = F-PAL
  • full term, preterm, abortions, living
Term
What is the first sign of pregnancy found on physical exam?
Definition
  • Goodell sign: softening of cervix felt first at 4 weeks.

MTB p. 443

Term
How are ectopic pregnancies medically managed?
Definition
  • if not ruptured → 1st dose of methotrexate
  • if > 15% ↓ β-hCG → observe
  • if < 15% ↓ β-hCG → 2nd dose of methotrexate
  • persistent ↑ levels of β-hCG → surgery
  • Exclusion criteria for MTX: immunodeficiency, noncompliant pts (cannot be lost to f/u), liver disease (MTX = hepatotoxic), ectopic > 3.5 cm/fetal heart beat (↑ risk of tx failure).

MTB p. 449

Term
What are the different types of abortions?
Definition
  • Complete: no products of abortion found; f/u in office.
  • Incompletesome products of conception found; D&C/medical.
  • Inevitable: products of conception intact, intrauterine bleeding, dilation of cervix; D&C/medical.
  • Threatened: products of conception intact, intrauterine bleeding, no dilation of cervic; bed rest/pelvic rest.
  • Missed: death of fetus, but all products of conception present in uterus; D&C/medical.
  • Septic: infection of the uterus and surrounding areas; D&C + IV abx.
  • Note: you can only answer these questions wih an U/S.
  • medical tx = misoprostol (prostaglandin E1 analog) → dilates cervix, expels fetus.

MTB p. 451

Term
How is preterm labor dx?
Definition
  • it is a combination of contractions with cervical dilation.
  • contractions → abdominal pain, lower back pain, or pelvic pain.
  • occurs btw 20 and 37 weeks.
  • cervical incompetence → no hx of contractions, but painless dilation of cervix.

MTB p. 452

Term
When should preterm labor be allowed to proceed without tocolysis?
Definition
  • maternal severe HTN
  • maternal cardiac disease
  • cervical dilation > 4 cm
  • maternal hemorrhage (abruptio placenta, DIC)
  • fetal death
  • chorioamnionitis
  • 34-37 weeks

MTB p. 453

Term
What is the procedure for premature rupture of membranes?
Definition
  • Term fetus w/ no chorioamnionitis → wait 6-12 hours for spontaneous delivery → then induce labor.
  • preterm w/ no chorioamnionitis → betametasone, tocolytics, ampicillin +  1 dose azithromycin; penicillin rash → cefazolin + azithro; penicillin anaphylaxis → clindamycin + azithro.
  • chorioamnionitis → immediate delivery.

MTB p. 455

Term
How does placenta previa present?
Definition
  • painless vaginal bleeding
  • never perform a digintal vaginal exam for bleeding during the 3rd trimester; it can ↑ separation btw placenta and uterus → severe hemorrhage.
  • placental abruption → painful vaginal bleeding.

MTB p. 455

Term
When is labor considered unstoppable?
Definition
  • cervix dilated > 4 cm

MTB p. 457

Term
When can fetal RBCs cross the placenta → Rh sensitization?
Definition
  • amniocentesis
  • abortion
  • vaginal bleeding
  • placental abruption
  • delivery
  • Prophylaxis w/ RhoGAM at 28 weeks and delivery. 

MTB p. 462

Term
Gestational HTN
Definition
  • HTN that starts after 20 weeks
  • no proteinuria or edema
  • tx only during pregnancy w/ methyldopa, labetalol, or nifedipine.

MTB . p. 463

Term
How is diabetes assessed during pregnancy?
Definition
  • glucose load test (50g) → glucose > 140 after 1 hour → glucose tolerance test (100g)
  • screening occurs at 24-28 weeks
Term
What can OCPs ↓ the risk of?
Definition
  • ovarian carcinoma
  • endometrial carcinoma
  • ectopic pregnancy

MTB p. 484

Term
Which medications are indicated for acute angle-closure glaucoma?
Definition
  • IV acetazolamide (↓ production of aqeous humor)
  • IV mannitol
  • pilocarpine (cholinergic agent) → constrict pupil

MTB p. 498

Term
How is chronic glaucoma managed?
Definition
  • prostaglandin analogues: latanoprost, travoprost, bimatoprost (↑ aqueous outflow).
  • topical β-blockers: ↓ aqueous humor production by ciliary body.
  • topical carbonic anhydrase inhibitor: ↓ aqueous humor production (HCO3- formation → Na+ production → osmotic draw).
  • α2 agonist: apraclonidine (↓ aqueous humor production & (↑ aqueous outflow).

MTB p. 498

Term
How is herpes keratitis tx?
Definition
  • oral acyclovir, famiciclovir, or valacyclovir
  • no steroids
  • uveitis → topical steroids

MTB p. 499

Term
How is macular degeneration managed?
Definition
  • there are 2 types: atrophic (dry) and neovascular (wet).
  • neovascular is more rapid and severe
  • tx: VEGF inhibitors (ranibizumab, bevacizumab, aflibercept).
  • no effective thx for atrophic

MTB p. 501

Term
SSx serotonin syndrome
Definition
  • Cognitive: agitation, confusion, hallucinations, hypomania.
  • Autonomic effects: sweating, hyperthermia, tachycardia, nausea, diarrhea, shivering.
  • Somatic effects: tremors, myoclonus.

MTB p. 513

Term
What is the difference b/w brief psychosis, schizophreniform, and schizophrenia?
Definition
  • duration
  • brief psychosis: > 1 day, < 1 mo
  • schizophreniform: > 1 mo, < 6 mos
  • schizophrenia: > 6 mos
  • always rule out cocaine/amphetamine use with U-tox.

MTB p. 513

Term
What are the diagnostic criteria for somatization disorder?
Definition
  • 4 pain
  • 2 GI
  • 1 sexual
  • 1 pseudoneurological

MTB p. 524

Term
What is the time frame for gastric lavage 2° to ingestion of toxic substance?
Definition
  • attempt up until 2 hours
  • pills can enter duodenum within 30-60 minutes
  • rarely done
  • dangerous in altered mental status (aspiration) and caustic ingestion.
  • do not use ipecac in the ED/hospital!!! recommend usage at home.
  • Never perform gastric empyting (lavage, whole bowel irrigation, ipecac) with caustics, AMS, and acetaminophen overdose.
  • Charcoal is superior to all of the above.

MTB p. 533

Term
SSx ASA overdose
Definition
  • tinnitushyperventilation
  • overall alkalosis
  • respiratory alkalosis & metabolic acidosis
  • ASA inhibits oxidative phosphorylation → anaerobic glucose metabolism → lactic acidosis
  • ↑ anion gap
  • tx: alkalinize urine → ↑ excretion
  • abg: pH 7.46, pCO2 22, HCO3- 16

MTB p. 536

Term
How is carbon monoxide poisoning tx?
Definition
  • 100% O2
  • if severe disease is present → hyperbaric O2
  • severe disease: CNS symptoms, cardiac symptoms, or metabolic acidosis.
  • CO presents with dyspnea, lightheadedness, confusion, seizures, and ultimately death via MI; acts functionally like anemia.
  • blood is bright red; normal pO2 b/c O2 does not detach from Hb.
  • same SSx with methemoglobinemia, but blood is brown; however, normal pO2 (cyanosisnormal pO2 = methemoglobinemia). tx: methylene blue.

MTB p. 539

Term
A pt is brought to the ED one hour after taking a bottle of pills. AVSS, confused, disoriented, lethargic. What is the best course of action?
Definition
  • naloxone and dextrose
  • opiate ingestion and DM are extremely common
  • opioid overdose is fatal; give naloxone immediately.
  • do not give flumazenil; benzo overdose by itself is not fatal and withdrawal → seizures.

MTB p. 535

Term
Acetaminophen Overdose Management
Definition
  • toxicity: ingestion > 8-10g, fatal > 12-15g
  • if toxic dose ingested → N-acetylcysteine
  • overdose > 24 hrs → no thx
  • amount of ingestion unclear → obtain drug levels
  • obtain drug levels at 4 hours.
  • charcoal can be administered immediately; however, N-acetylcysteine should be withheld until drug levels are obtained.
  • Effective as long as N-acetylcysteine is administered within 8 hours of ingestion.
  • charcoal can be administered with N-acetylcysteine

MTB p. 536, UW3136

Term
How is osmolar gap calculated?
Definition
  • serum osmolality = 2xNa+ + BUN/2.8 + glucose/18

MTB p. 542

Term
What are the toxic metabolites of methanol and ethylene glycol?
Definition
  • formic acid/formaldehyde
  • oxalic acid
  • inhibit alcohol dehydrogenase w/ fomepizole
Term
What should you not treat WPW with?
Definition
  • diltiazem or digoxin
  • SVT will get worse with these medications b/c they block the normal AV node and force conduction into the abnormal pathway.
  • tx current WPW with procainamide or amiodarone

MTB p. 556

Term
Which penicillins are effective against staph?
Definition
  • none
  • all staph species produce penicillinase
  • use penicillinase resistant abx - oxacillin, cloxacillin, dicloxacillin, and nafcillin.

MTB p. 4

Term
What are the adverse effects of cefoxitin and cefotetan? ceftriaxone?
Definition
  • cefoxitin and cefotetan: deplete prothrombin and ↑ risk of bleeding.
  • ceftriaxone: inadequate biliary metabolism.

MTB p. 6

Term
Which abx cover MRSA?
Definition
  • vancomycin
  • linezolid
  • daptomycin
  • tigecycline
  • ceftaroline
  • minor skin infxn of skin: TMP/SMX, Clindamycin, Doxycycline, Linezolid.

MTB p. 7

Term
Aztreonam
Definition
  • exclusively for gram (-) bacilli including Pseudomas
  • only drug in the class of monobactams
  • aminoglycosides also excellent for gram (-); no anaerobes (requires O2 to work).

MTB p. 6

Term
How is suspected bacterial meningitis tx?
Definition
  • ceftriaxone + vancomycin + steroids
  • add ampicillin if immunocompromised for Listeria
  • steroids are only proven to ↓ mortality in S. pneumoniae.
  • Listeria is resistant to all cephalosporins (tx if elderly, neonates, steroid use, AIDS/HIV, imunocompromised, etOH, pregnant).

MTB p. 11

Term
How is acyclovir resistant herpes encephalitis?
Definition
  • foscarnet
  • acyclovir is IV
  • famciclovir and valacyclovir are oral meds; ineffective for encephalitis.

MTB p. 13

Term
How is chronic hepatitis B tx? Hep C?
Definition
  • chronic hepatitis B: persistence of surface Ag > 6 mos.
  • tx with one of the following: entecavir, adefovir, lamivudine, telbivudine, interferon, or tenofovir.
  • Interferon AE: arthralgia/myalgia, leukopenia/thrombocytopenia, depression, flu-like sx.
  • hepatitis C: interferon & ribavirin + telaprevir/boceprevir (for both acute and chronic).
  • no acute tx for hepatitis B

MTB p. 21

Term
How is 1° and 2° syphilis tx? 3°?
Definition
  • 1° and 2°: single IM injection of penicillin; allx → oral doxycycline; pregnant → desensitize to penicillin.
  • 3°: IV penicillin; allx → desensitize to penicillin.

MTB p. 25

Term
Pyelonephritis tx
Definition
  • ampicillin & gentamicin until culture results are known.
  • ceftriaxone, ertapenem
  • ciprofloxacin for outpt

MTB p. 28

Term
What should you think of when you see fever + murmur?
Definition
  • endocarditis
  • empiric thx: vancomycin and gentamycin

MTB p. 30

Term
What fatal condition can result in an infant with menigococcemia?
Definition
  • Waterhouse-Friedrichsen syndrome
  • sudden vasomotor collapse and skin rash due to adrenal hemorrhage

UW 3442

Term
What is the most common cause of death within the 72 hour period post-MI?
Definition
  • ventricular tachycardia
  • 2° to ischemia
  • tx ischemia → angioplasty

MTB p. 559

Term
How is chronic atrial fibrillation managed?
Definition
  • goal #1: ↓ HR < 100 with β blocker, CCB (verapamil/diltiazem), digoxin.
  • goal #2: anticoagulation w/ warfarin, dabigatran (direct thrombin inhibitor), or rivaroxaban (factor Xa inhibitor).
Term
How is SVT managed?
Definition
  • #1: vagal maneuvers
  • #2: adenosine
  • #3: β blocker, CCB (verapamil/diltiazem), digoxin
  • note: SVT alternating w/ VT = WPW; diltiazem/digoxin can precipitate WPW; tx WPW with procainamide or amiodarone.
Term
What is ventricular remodeling and how is it minimized?
Definition
  • ventricular remodeling → dilatation of left ventrical w/ thinning of ventricular walls → CHF
  • occurs in the weeks to months following an MI.
  • ACE inhibitors have been shown to limit ventricular remodeling; should be initiated within 24 hrs of MI.

UW 2732

Term
Which cancers secrete ACTH?
Definition
  • small cell lung cancer
  • pancreatic cancer
  • neuroendocrine
  • bronchial carcinoids

UW2173

Term
Hypokalmeic alkalosis
Definition
  • can occur with ectopic ACTH production
  • ↑ aldosterone → ↑ principal cell basolateral Na/K ATPase w/ subsequent loss of K+ via apical channels; however, when K+ is ↓, protons are used by the ATPase instead → loss of H+ and alkalosis.

[image]

UW 2173

Term
What is struma ovarii?
Definition
  • ovarian teratoma which produces thyroid hormones → thyrotoxicosis
  • extremely rare
  • if you see pt w/ thyrotoxicosis w/ ↓ radioactive iodine uptake it is more likely that is a thyroiditis; also subacute granulomatous thyroiditis, levothyroxine overdose, iodine-induced thyrotoxicosis.

UW 2191

Term
What are some AEs of thiazide diuretics?
Definition
  • hyperglycemia
  • ↑ LDL
  • ↑ plasma TG
  • gout 2° uric acid retention
  • hypercalcemia, hyponatremia, hypokalemia
  • Furosemide: hypokalemia and hypomagnesemia → ventricular tachycardia; also can potentiate effects of digoxin → VT.

UW 4171, 2164

Term
What are the Hb electrophoresis patterns for sickle cell trait & disease?
Definition
  • trait: HbA 50-60%, HbS 35-45%, HbF < 2%
  • disease: HbA 0%, HbS 85-95%, HbF 5-15%
  • Ssx sickle cell trait: microscopic or gross hematuria (sickling in the renal medulla), isosthenuria (impairment in concentrating ability) which can present as nocturia & polyuria.

UW3787

Term
When should chorioamnionitis be suspected?
Definition
  • mothers presenting with prolonged or preterm premature rupture of the membranes (< 37 weeks)
  • fever
  • AND one of the following: tachycardia (> 100 bpm), fetal tachycardia (> 160 bpm), maternal leukocytosis (> 15,000), uterine tenderness, or foul-smelling amniotic fluid.
  • abx: ampicillin & gentamicin

UW4134

Term
What is Reye syndrome?
Definition
  • aka fatty liver with encephalopathy
  • seen exclusively in children < 15, and is preceded by an URI w/ influenza or varicella.
  • tx w/ salicylates ↑ the likelihood of developing Reye syndrome.
  • SSx: N&V, excitability, delerium, combativeness, hypoglycemia, liver failure.
  • ASA is contraindicated in children except in tx of Kawasaki disease.

UW2896

Term
What is the difference between CML with blast crisis and a leukemoid rxn?
Definition
  • indistinguishable on a peripheral blood film.
  • leukocyte alkaline phosphatase score plays a role in distinguishing btw the two.
  • ↑ LAP → leukemoid rxn
  • ↓ LAP → CML with blast crisis

UW2886

Term
What can ENV cause in an HIV patient?
Definition
  • CNS lymphoma
  • MRI → weakly ring-enhancing mass that is usually solitary and periventricular.

UW2276

Term
What is the alternative if an HIV patient with PCP is unable to tolerate TMP/SMX?
Definition
  • pentamidine
  • remember: prednisolone is used with TMP/SMX when a pts PaO2 < 70.

UW2273

Term
Which medications can cause benign/idiopathic intracranial HTN?
Definition
  • i.e. pseudotumor cerebri
  • OCPs, corticosteroids, vitamin A
  • acute/subacute/chronic HA associated with blurry vision or visual loss, papilledema, pulsatilse tinnitus, abducens nerve palsy, and N&V.

UW 3162

Term
How can you differentiate septic arthritis from crystal-induced arthritis from synovial aspirates?
Definition
  • WBC 10k-50k → crystal-induced arthritis
  • 50k-150k → septic arthritis
  • Staphylococcus aureus is the most common cause of prosthetic joint septic arthritis; via hematogenous spread.

UW4589

Term
What is the ddx for T-wave inversions?
Definition
  • MI, myocarditis, old pericarditis, myocardial contusion, and digoxin toxicity.

UW2439

Term
How is akathisia tx?
Definition
  • propranalol
  • akathisia is a common side effect of antiΨ

UW4895

Term
What is ileus?
Definition
  • a functional defect in bowel motility in the absence of a physical obstruction.
  • Ssx: N&V, abdominal distension, failure to pass flatus or stool, hypoactive bowel sounds (mechanical obstruction actually → hyperactive "tinkling" bowel sounds).
  • abdominal surgery is the most common cause.

UW4609

Term
What is the first line of medical thx for HOCM?
Definition
  • β-blocker or cardiac acting CCB (verapamil/diltiazem)
  • HOCM has an autosomal dominant inheritance pattern.

UW2686

Term
How is amenorrhea from OCP usage managed?
Definition
  • βhCG
  • if pt is not pregnant amenorrhea 2° to OCP usage → ↑ estrogen dose often solves problem.

UW2389

Term
Pruritis, xanthelasmas, scleral icterus, dark urine
Definition
  • primary biliary cirrhosis
  • antimitochindrial Ab
  • ursodeoxycholic acid is the drug of choice for PBC
  • methotrexate and colchicine have also been shown to be of moderate benefit.
  • steroids are ineffective

UW2950

Term
What grade of murmur is considered innocent?
Definition
  • grade 2/6 or less
  • also diastolic murmurs are considered innocent

MKSAP p. 35

Term
Describe the mechanism of heparin induced thrombocytopenia.
Definition
  • heparin → release of platelet factor 4 → formation of heparin-PF4 complexes → IgG against complexes → activation of platelets, endothelial cell activation, and abnormal generation of intravascular thrombin → vascular thrombosis in 50% of pts affected by HIT.

UW4616

Term
What are the ssx and vitamin D toxicity?
Definition
  • hypercalcemia
  • constipation
  • abdominal pain
  • weight loss
  • polyuria/polydypsia

UW3083

Term
What are the ssx of adrenal insufficiency?
Definition
  • weakness
  • fatigue
  • weight loss
  • anorexia
  • depression
  • ↑ pigmentation
  • hypotension
  • hyponatremia, hyperkalemia, anemia, and eosinophilia may be present.

UW2174

Term
What is the difference between multiple myeloma and MGUS (monoclonal gammopathy of undetermined significance)?
Definition
  • MGUS: < 3 g/dl M protein on serum protein electrophoresis; < 10% plasma cells in BM.
  • MM: ≥ 3 g/dl M protein; ≥ 10% plasma cells BM; anemia, hypercalcemia, lytic bone lesions, renal insufficiency.

UW2249

Term
How is polymyalgia rheumatica dx?
Definition
  • age > 50
  • pain and stiffness in neck, shoulders, and pelvic girdle
  • ↑ ESR
  • morning stiffness lasting over 1 hour
  • no pain with active ROM
  • no signs of joint inflammation
  • tx: low dose prednisone

UW3317

Term
What should be considered w/ unexplained elevation of serum creatinine kinase and myopathy?
Definition
  • hypothyroidism
  • test with TSH
  • hyperthyroidism also → myopathy
  • acute thyrotoxic myopathy (more severe distal or proximal muscle weakness)
  • chronic thyrotoxic myopathy (proximal muscle weakness weeks to months after onset of hyperthyroidism).

UW3878, 4382

Term
What is the greatest risk factor for variant angina?
Definition
  • aka Prinzmetal angina
  • greatest risk factor is smoking
  • typically occurs in young females (40s)
  • episodes typically occur at night
  • transient ST segment elevation
  • CCB (diltiazem) or nitrates

UW2723

Term
What must be considered when pt presents w/ renal colic sx, but kidney, ureter, bladder x-ray (KUB) is negative?
Definition
  1. radiolucent stone disease (uric acid)
  2. calcium stones < 1-3 mm
  3. non-stone causes (obstruction by clot or tumor)
  • uric acid stones seen w/ low urine pH
  • tx: hydration, alkalinization of urine, ↓ purine diet, possible allopurinol use.
  • alkalinize urine w/ potassium bicarbonate or potassium citrate.
Term
What is the definition of orthostatic hypotension?
Definition
  • postural ↓ in BP by 20 systolic or 10 diastolic

UW4728

Term
What are the common causes of metabolic alkalosis?
Definition
  1. vomiting (volume depletion)
  2. diuretics (volume depletion)
  3. excess mineralocorticoids (volume depletion)
  • metabolic alkalosis respiratory compensation formula
  • PaCO2 = (0.9 x HCO3-) + 16 ± 2

UW2806

Term
What is the problem with premature adrenarche and thelarche? Pubarche?
Definition
  • Premature adrenarche (isolated appearance of axillary hair before the age of 6) is from secretion of androgen from the adrenal glands; no clinical significance.
  • Premature thelarche (breast development) from secretion of estrogen and progesterone from ovaries.
  • Premature pubarche (pubic hair before the age of 8) is alarming and associated with CNS disorder in 50% of cases.

UW3867

Term
What is the hepatojugular reflex?
Definition
  • useful for differentiating heart disease from liver disease as a cause of lower extremity edema.
  • (+) in individuals with heart disease
  • (-) liver disease related edema

UW4133

Term
What is febrile neutropenia?
Definition
  • neutropenia = absolute neutrophil count < 1500/μl
  • it is a medical emergency
  • empiric thx with broad-spectrum abx that covers Pseudomonas.
  • monothx: ceftazidine, cefepime, imipenem, or meropenem.

UW2992

Term
Describe the pathophysiology of spinal stenosis.
Definition
  • it is a degenerative process of the vertebrae
  • #1 osteophyte formation on the joint factes, #2 hypertrophy of the ligamentum flavum.
  • pain radiates to the thigh and buttocks; walking and lumbar extension aggravates the pain; sitting and flexion relieves pain
  • this is in contrast to disc herniation → pain worsened with flexion and sitting.

UW4369

Term
What are common causes of thrombocytopenia? Separate by decreased platelet production and increased platelet destruction.
Definition
  1. viral infxn (EBV, Hep C, HIV)
  2. Chemothx
  3. myelodysplasia
  4. etOH
  5. congenital (fanconi syndrome)
  6. vitamin B12 or folate deficiency

  • SLE
  • medications (heparin)
  • ITP, DIC, TTP/HUS
  • antiphospholipid syndrome
  • OTHER: transfusion (dilutional) and splenic sequestration.

UW4860

Term
What is Fanconi anemia?
Definition
  • Most common congenital cause of aplastic anemia.
  • autosomal recessive or X-linked disorder involving DNA repair genes → chromosomal breaks.
  • SSx:
  • Bone Marrow: aplastic anemia and progressive bone marrow failure.
  • Appearance: short stature, microcephaly, abnormal thumbs, and hypogonadism.
  • Skin: Hypopigmented/hyperpigmented areas, cafe au lait spots, large freckles.
  • Eyes/Ears: strabismus, low-set ears, middle ear abnormalities (e.g. hemorrhage, incomplete development, chronic infections, deafness); can present with pounding in ears from possible conduction defects or chronic hemorrhage.
  • tx: hematopoietic stem cell replacement.

UW4438

Term
At what  gestational age is betamethasone administered?
Definition
  • between 24 and 34 weeks
  • Lecithin/Sphingomyelin ratio < 2

UW3274

Term
What is angiodysplasia commonly associated with?
Definition
  • aortic stenosis or end-stage renal disease
  • it is a common cause of recurrent, painless GI bleeding in patients age > 60 years.

UW4085 

Term
How does ethylene glycol poisoning cause hypocalcemia and ↑ BUN & creatinine?
Definition
  • ethylene glycol is converted to oxalic acid (binds Ca2+ and deposits in kidneys) and glycolic acid (nephrotoxic, renal tubule injury).
  • look for ethanol-like intoxication, flank pain, hematuria, anion gap metabolic acidosis.
  • tx: fomepizole or etOH

UW4511

Term
Hydroxychloroquine is prescribed to manage SLE. What must be monitored?
Definition
  • regular eye exam

UW3173

Term
What are some unusual causes of 2° HTN?
Definition
  • Renal parenchymal disease (↑ creatinine, abnormal UA w/ proteinuria or RBC casts); this is in contrast to renovascular disease.
  • Cushing disease
  • hypothyroidism
  • primary hyperparathyroidism

UW4722

Term
Adverse effects of erythropoietin thx
Definition
  • worsening HTN
  • HA
  • flu-like symptoms
  • red cell aplasia

UW3978

Term
What is an important complication of nephrotic syndrome?
Definition
  • renal vein thrombosis
  • nephrotic syndrome → loss of antithrombin III
  • SSx: suden onset abdominal pain, fever, and hematuria.
  • most common cause of RVT is membranous glomerulonephritis.

UW2243

Term
What is the water deprivation test good for differentiating?
Definition
  • diabetes insipidus vs. psychogenic polydipsia
  • both present with polyuria & polydispsia → ↓ urine osmolarity.
  • then, if pt fails to concentrate urine, → AVP/desmopressin test for central vs. nephrogenic DI.

UW3729

Term
How is cocaine intoxication managed?
Definition
  • benzodiazepine
  • also: ASA, nitroglycerin, and CCBs
  • No β-blockers; contraindicated!!! Can cause unopposed α adrenergic stimulation and worsen coronary vasoconstriction.

UW4042

Term
What are the adverse effects of methotrexate?
Definition
  • stomatitis
  • nausea, abdominal pain
  • anemia (folate deficiency → macrocytic anemia)
  • hepatotoxicity
  • interstitial lung disease
  • myelosuppression
  • fever

UW4573

Term
Management of ascites
Definition
  • #1 - Na+ and H2O restriction
  • #2 - Spironolactone
  • #3 - Loop Diuretic (≤ 1 L/day)
  • #4 abdominal paracentesis (2-4 L/day)
  • over diuresis/fluid removal → hepatorenal syndrome; monitor renal fxn closely!

UW2218

Term
What can cause dimorphic RBC populations?
Definition
  • pyridoxine deficiency
  • causes microcytic anemia → sideroblastic anemia 2° to ↓ protoporphyrin synthesis (glycine & B6 required by ALA synthase).

UW4037

Term
Tick bite → 2 weeks later presents with fever, drenching, sweats, malaise, and jaundice with dark-colored urine. What is the dx?
Definition
  • babesiosis (No rash)
  • tx: quinine-clindamycin or atovaquone-azithromycin
  • Babesia enters RBCs → lysis
  • Ehrlichiosis (No rash): fever, malaise, HA, N&V, leukopenia and thrombocytopenia.

UW3104

Term
Cephalohematoma vs Caput succedaneum
Definition
  • cephalohematmoa: subperiosteal hematoma; does not cross suture lines and presents several hrs after delivery. Can cause neonatal jaundice; resorbs after 2 wks - 3 mos.
  • caput succedaneum (edema): diffuse soft tissue swelling; sometimes ecchymotic.

UW2472

Term
What is on the differential for pulsus paradoxus?
Definition
  • fall in systolic pressure of > 10 mmHg during inspiration.
  • cardiac tamponade, asthma, COPD, and tension pneumothorax.

UW4771

Term
Which pt population is prone to hyperoxaluria?
Definition
  • intestinal disorders that predispose the pt to fat malabsorption.
  • normally, in the GI, Ca2+ binds oxalate and prevents it's absoprtion.
  • however, with ↑ fat, Ca2+ is bound to it, leaving oxalate free for absorption.

UW3435

Term
How is febrile neutropenia managed?
Definition
  • single temp > 38.3° C or sustained temp > 38° C for > 1 hour in a neutropenic pt.
  • in a neutropenic pt fever may be the only sign of infectino.
  • mild (< 1500 cells/μl), moderate (<1000), severe (<500).
  • must hospitalize and administer abx if moderate or severe.

UW2616

Term
How is primary hyperparathyroidism differentiated form familia hypocalciuric hypercalcemia?
Definition
  • primary hyperPTH: 24 hr urine calcium > 200 mg or urine calcium/creatinine clearance ratio > 0.02.
  • familial hypocalciuric hypercalcemia: < 100 mg or urine calcium/creatinine clearance ratio <0.01
  • both have ↑ PTH

UW2176, 2165

Term
How does hypothyroidism → hyperprolactinemia?
Definition
  • TRH stimulate prolactin production
  • serotonin also stimulates prolactin production
  • prolactin production is inhibited by dopamine

UW4221

Term
Describe the tx of hyponatremia
Definition
  • mild (forgetfulness, unstable gate) - fluid restriction or oral salt tablets.
  • moderate (confusion, lethargy) - hypertonic saline to ↑ sodium > 120 mEq/L.
  • severe (seizures, inability to communicate, or coma) - hypertonic saline until symptom resolution.

UW2181

Term
Which medication is great at stimulating appetite in pts with cancer?
Definition
  • progesterone analogs (megestrol acetate and medroxyprogesterone acetate).

UW2646

Term
Langerhans cell histiocytosis
Definition
  • aka Langerhans cell granulomatosis, histiocytosis X
  • proliferative disorder of dendritic cells from the monocyte lineage.
  • cells are functionally immature and do not stimulate T lymphocytes via antigen presentation.
  • Birbeck granules (tennis rackets) are characteristic.
  • can cause solitary lytic bone lesions in children and young adults; benign, can spontaneously resolve, tx conservatively.

UW4642

Term
Describe the presentations of the different fungal infections.
Definition
  • Histoplasmosis: cough, fever, malaise. CXR → hilar adenopathy; chronic histoplasmosis and disseminated histoplasmosis is more common in HIV pts.
  • Blastomycosis: infection in immunocompromised host is uncommon.
  • Coccidiomycosis: Southwesern US, Cental & South America. Fever, fatigue, dry cough, weight loss, pleuritic chest pain. Cutaneous findings such as erythema multiforme/nodosum, as well as arthralgias.
  • Aspergillosis: CXR → cavitary lesion; CT → pulmonary nodule with halo sign or lesion with air crescent. Occurs in immunocompromised pts (fever, cough =, dyspnea).

UW2997

Term
Which medications are used for absence seizures?
Definition
  • ethosuximide
  • valproic acid
  • lamotrigine

UW2279

Term
What can trigger porphyria cutanea tarda?
Definition
  • often associated w/ Hep C, and can be triggered by etOH or estrogen.
  • painless blister, facial hypertrichosis, and hyperpigmentation.
  • uroporphyrinogen decarboxylase deficiency
  • also Acute intermittent porphyria (porphobilinogen deaminase def; upstream from above). Painful abdomen, redwine colored urine (clear at first), polyneuropathy, psychological disturbances, precipitated by drugs.

UW4314

Term
What SSx should raise suspicion for hereditary hemochromatosis?
Definition
  • newly dx diabetes, arthropathy (eg, knee/shoulder pain), and hepatomegaly
  • HHC pts are vulnerable to Listeria monocytogenesYersinia enterocoliticaVibrio vulnificus.

UW2880, 3160

Term
How does transposition of the great vessels present?
Definition
  • cyanosis within the first 24 hours
  • single loud S2; because of the transposition the aorta is now located in front of the pulmonary artery → loud singular S2 (drowns out soft pulmonary valve S2).

UW4260

Term
A patient experiences wheezing after receiving naproxen. What is the dx?
Definition
  • aspirin-exacerbated respiratory disease (AERD)
  • commonly associated with nasal polyps
  • AERD associated with the following symptoms: asthma, chronic rhinosinusitis w/ nasal polyps, and bronchospasm or nasal congestion following the ingestion of ASA or NSAIDs.

UW2842

Term
What should you consider in a patient with HTN and a palpable abdominal mass?
Definition
  • polycystic kidney disease
  • hematuria may also be present
  • Adrenal masses (1° hyperaldosteronism, pheochromocytoma, Cushing) are almost never palpable.

UW4680

Term
How and when should you calculate a corrected Ca2+ level?
Definition
  • Corrected Ca2+ = measured total Ca2+ + 0.8 (4.0 g/dL - measured sreum albumin)
  • basically for every 1 g/dL ↓ in albumin below 4 g/dL, there is decrease in total serum Ca2+ by 0.8.
  • Start correcting when albumin dips below 4.

UW3100

Term
What is used to tx bipolar disorder?
Definition
  • mild to moderate - preferred: atypical antiψ
  • aripiprizole, olanzapine, quetiapine, risperidone, ziprasidone; or as an alternative: lithium or valproic acid.
  • severe episodes - mood stabilizer + antiΨ
  • mood stabilizer: lithium, valproate, or lamotrigine.

UW2495

Term
What are the SSx of CO poisoning?
Definition
  • HA, nausea, dyspnea, malaise, AMS, dizziness
  • severe: seizure, coma, syncope, heart failure, or arrhytmias.
  • pulse oximeter is unreliable in this situation; cannot differentiate carboxyHb from oxyHb.

UW3223

Term
What are some serious side effects of OCPs?
Definition
  • VTE
  • cardiovascular events/stroke
  • ↑ TG
  • cholestasis or cholecystitis
  • DM
  • HTN
    Benefit/protective against
  • ovarian cysts/cancer
  • endometrial cancer
  • benign breast disease
  • dysmenorrhea

UW2392

Term
How does chronic pyelonephritis appear on IV pyelography?
Definition
  • focal parenchymal scarring
  • blunting of calices
  • hydronephrosis → dilation of the collecting system (different from above).

UW3694

Term
What is a Baker cyst?
Definition
  • develops as a result of excessive fluid production by inflamed synovium.
  • as fluid volume expands, excess fluid accumulates in the popliteal bursa → fills popliteal fossa.
  • caused by inflammatory conditions: RA, osteoarthritis, and cartilage tears.

UW4583

Term
What should you be concerned about with sudden onset hirsutism or virilization during pregnancy?
Definition
  1. No ovarian mass: abdominal CT to rule out adrenal mass.
  2. Bilateral cyst: Theca Lutein cyst (rule out ↑ βhCG states).
  3. Bilateral solid: mostly pregnancy luteoma (benign condition, no tx necessary).
  4. Unilateral solid: laparotomy or laparoscopic bx to rule out malignancy.

UW2415

Term
How is antiphospholipid syndrome managed?
Definition
  • low dose ASA
  • low molecular weight heparin

UW2256

Term
What can trigger torsades de pointes?
Definition
  • malnourished pts predisposed to hypomagnesemia (eg, alcoholics)
  • TCA
  • moxifloxacin and fluconazole
  • familal long QT syndrome
  • tx: initiate magnesium sulfate

UW2659

Term
Anterior cord syndrome
Definition
  • associated with burst fxr of vertebra
  • total loss of motor fxn below level of lesion
  • loss of pain and temperature on both sides below lesion
  • intact proprioception
  • central cord syndrome: burning pain and paralysis in upper extremities w/ relative sparing of lower extremities. Common in elderly w/ forced hyperextension type injury to neck.
  • syringomyelia:damage to crossing fibers of pain & temp, upper extremity motor fibers (medial location of w/in corticospinal tract); preserved vibration and proprioception.

UW3300, 4698

Term
What is the most common cause of mitral regurgitation?
Definition
  • mitral valve prolapse
  • by far the most common cause of MR in developed countries.
  • rheumatic fever can cause MR, but mitral stenosis is more common.

UW2695

Term
How does hypokalemia occur w/ emesis?
Definition
  • emesis → volume contraction → ↑ aldosterone → K+ and H+ loss.
  • metabolic acidosis can be divided into chloride-sensitive and chloride resistant.
  • chloride-sensitive: urine Cl- < 20 mEq/day (aldo → Na+ retention and Cl-; think NaCl).

UW2819

Term
What features are common in CML?
Definition
  • low leukocyte alkaline phosphatase + leukocytosis
  • note: elevated leuk Alk Phos is characteristic of Leukemoid Rxn.

UW2885

Term
What is the prophylactic erythromycin ointment effective against?
Definition
  • gonnococcal infection only
  • only prenatal maternal testing and tx are effective against neonatal chlamydial infections; screen all pregnant women for chlamydia at first prenatal visit; repeat screening during 3rd trimester age < 25.
  • chlamydial conjunctivitis presents at age 5-10 days
  • chlamydial pneumonia presents at age 4-12 weeks
  • both are tx with oral erythromycin for 14 days, despite risk of hypertrophic pyloric stenosis.

UW3660

Term
How is iron deficiency anemia differentiated from thalassemia based on CBC values alone?
Definition
  • RDW
  • RDW > 20% → Fe deficiency anemia
  • reticulocyte count is ↓ as well; it is an indicator of ↓ bone marrow erythropoiesis
  • RDW normal in thalassemia

UW4876

Term
A patient experiences wheezing and upper airway congestion after taking an ASA. What is the cause?
Definition
  • pseudo-allergic rxn
  • bronchoconstriction and polyp formation
  • aspirin sensitivity syndrome; it is not a true allergy, and due to a shift/imbalance of prostaglandins/leukotrienes.
  • COX1/2 inhibition → arachidonate shuttling into 5-lipoxygenase pathway → ↑ leukotrienes.
  • tx: leukotriene inhibitors (montelukast or zafirlukast)

UW4065

Term
Which organs are commonly affected by graft versus host disease?
Definition
  • skin: maculopapular rash involving palms, soles, and face.
  • intestine: blood (+) diarrhea
  • liver: abnormal liver fxn and jaundice

UW4151

Term
What are some potential causes of xanthomas?
Definition
  • PBC: eyelids
  • hypertriglyceridemia: yellow-red papules on arms and shoulders (eruptive xanthomas); consider checking lipid panel if pt has above SSx with acute pancreatitis (TG > 1000).

UW2965

Term
What should be considered when a post-bone marrow transplant pt presents with pneumonitis and colitis?
Definition
  • CMV

UW3613

Term
Pancreatic pseudocyst
Definition
  • often resolves spontaneously
  • drainage if persists > 6 weeks, > 5 cm, or becomes infected.
  • major complication: erodes into blood vessel → severe hemorrhage into pseudocyst.
  • not a true cyst (no epithelial lining, just a thick fibrous capsule); inflammatory fluid contains amylase, lipase, and enterokinase.
  • commonly associated with chronic pancreatitis, but can occur with acute pancreatitis, pancreatic trauma, and pancreatic neoplasm.

UW2897

Term
How is fibromuscular dysplasia tx?
Definition
  • angioplasty with stent placement
  • can be unilateral
  • FYI: b/l renal artery stenosis → ACEi is contraindicated.

UW3894

Term
What are the criteria for Kawasaki disease?
Definition
  • fever ≥ 5 days + 4 of the following:
  1. Δs in peripheral extremities (initial reddening or edema of palms & soles → desquamation of finger/toe tips).
  2. polymorphous, non-vesicular rash
  3. oropharyngeal Δs (erythema, fissuring, crusting of lips; strawberry tongue; diffuse mucosal injection of oropharynx).
  4. bilateral conjunctival injection (painless, nonexudative)
  5. acute nonpurulent cervical lymphadenopathy w/ lymph node diameter > 1.5 cm, usually unilateral.

emedicine

Term
How does a pt with toxic megacolon present?
Definition
  • requires radiographic evidence of colonic distension + 3 of the following
  • fever > 38° C
  • HR > 120
  • nø leukocytosis
  • anemia AND 1 of the following
  • volume depletion, AMS, electrolyet disturbance, or hypotension.

UW2205

Term
How is a solitary brain metastasis managed?
Definition
  • surgical resection of mass + whole brain irradiation
  • multiple brain mets → palliative whole brain irradiation.

UW4072

Term
Management of low-grade gastric MALT lymphoma
Definition
  • PPI, clarithromycin, amoxicillin
  • tx for H. pylori
  • if abx thx fails → chemothx

UW2596

Term
What is nonallergic rhinitis?
Definition
  • aka vasomotor rhinitis
  • predominant nasal congestion/stuffiness, postnasal drip, and no specific identifiable triggers.
  • tx: intranasal antihistamine spray or intranasal glucocorticoids.
  • allergic rhinitis: more prominent eye symptoms (watery, itchy), sneezing, and triggers.

UW4201

Term
SSx of Cryoglobulinemia
Definition
  • palpable purpura
  • glomeulonephritis
  • arthralgias
  • hepatosplenomegaly
  • peripheral neuropathy
  • hypocomplementemia (in Henoch-Schonlein purpura complement is normal)
  • most patients have Hepatitis C.

UW2232 

Term
When shoud hyperaldosteronism be suspected?
Definition
  • young pt with HTN, muscle weakness, and numbness.
  • hypokalemia → weakness & numbness

UW3929

Term
What causes prolonged bleeding time in chronic renal failure?
Definition
  • ↑ BUN → platelet dysfunction
  • prolonged bleeding time; normal PT & PTT
  • tx: DDAVP
  • transfused platelets quickly become inactive

UW3951

Term
What are the indications for dialysis?
Definition
  • hyperkalemia refractory to tx
  • volume overload or pulmonary edema not responding to diuretics
  • refactory metabolic acidosis
  • uremic pericarditis
  • uremic encephalopathy or neuropathy
  • coagulopathy due to renal failure

UW2224

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