uworld3 Flashcards
why does leaning on affected lung in pneumonia cause hypoxemia?
right-to-left intrapulmonary shunting and VQ mismatch
with affected lung downward: gravity increases blood flow but decreased ventilation
felty syndrome
triad: inflammatory arthritis, splenomegaly, neutropenia
usually established rheumatoid arthritis
cutaneous blastomycosis
well circumscribed verrucous nodules and plaques tat progress to microabscesses
what dx? someone with CV risk factors has chronic abdominal pain post-prandial, weight loss, and food aversion?
chronic mesenteric ischemia
diagnosis of mesenteric ischemia
CT angiogram
first line therapy to chronic stable angina
beta blockers
hepatojugular reflex elicited how?
press on abdomen with sustained pressure for 10-15 sec
positive: if JVP is >3 cm during compression
what is positive hepatojugular reflex indicative of? and what are main causes of positive reflex?
indicates cardiac cause over hepatic cause of lower extremity edema
constrictive pericarditis, RV infarct, restrictive cardiomyopathy
panednoscopy
esophagoscopy
brochoscopy
laryngoscopy
mitral stenosis sxs
pulm congestion–> SOB, orthopnea, paroxysmal nocturnal dyspnea, hemoptysis
LAE–> afib and systemic thromboembolic complications
what meds can help with cancer-related anorexia/cachexia?
progesterone analogues
and corticosteroids–but side effects :(
what dz does cannabinoid help with in terms of cachexia?
HIV cachexia
do thiazide diuretics cause hypo or hypernatremia?
hyponatremia
how does central or nephrogenic diabetes affect serum sodium levels?
nephrogenic-nl because thirst center intact
central- hypernatremic because thirst center not intact
management of asystole/pulseless electrical activity
CPR- compressions!
IV access- epinephrine every 3-5 min
no defibs!
