USMLE Flashcards
PSA screening
determined on a case by case basis
What mobitz is a wenchebach
mobitz 1
benign and transient
Long PR interval is a ?
1st degree heart block
PR > 0.20 seconds
Ps and QRS have no relationship
3rd degree heart block
Urine protein excretion of 1 g/ 24 hours
proteinuria
Treatment of severe PCP
tmp-smx and steroids
severe if: PaO2 < 70 or A-a > 35
Rx of toxic megacolon
emergency! IV steroids nasogastric decompression abx fluid management
Increased serum aldosterone results in?
serum alkolosis
Loss of H and loss of K into urine
Splenic sequestration of blood cells common in
cirrhosis
malaria
sickle cell
Cor pulmonale
impaired RV fxn from pulm htn
heart failure with preserved ejection fraction is usually?
due to hypertensive changes
Heart failure from CAD is likely?
systolic dysfunction with decreased LV ejection
antianginal effects of nitro are from?
systemic vasodilation–> ↓ preload –> ↓ wall stress and o2 demand
Ventilation in ARDS
low tidal volume improves mortality in ARDS
Febrile neutropenia needs?
empiric broad spectrum coverage with anti-pseudomonal coverage
Pip-Tazo is good
DDX of toxic megacolon
fever > 38 pulse > 120 WBC > 10,500 anemia w/ megacolon
*emergency steroids, abx, nasogastric decompression, and fluid management
FDA has added a warning against the use of _________ as monotherapy in asthma
long-acting β2-agonists
___________ is the only medication with consistent evidence showing that it improves depression symptoms in children and adolescents
Fluoxetine
The primary treatment for symptomatic mitral valve prolapse is ___________
β-blockers
___________ are the most common drug-related cause of acute interstitial nephritis
Antibiotics, especially penicillins, cephalosporins, and sulfonamides
nervous system vs erection and ejaculation
erection- para
ejac- sympa
treating premature ejaculation medically
Fluoxetine raises the threshold for orgasm, making it an effective treatment option
Lab test for alcoholism
Elevated GGT is shown to be more sensitive than an elevated MCV, ALT, AST, or LDH
*but other things can also raise it, not sensitive
What age do mammograms stop
75
every 2 years from 50-75
s/s of thyroid storm
fever
hemodynamic instability
cardiac arrhythmia
CHF
emergent rx for acute angle glaucoma
mannitol
acetazolamide
pilocarpine
timolol
Atropine and pupil size
atropine dilates pupils
estrogen and T4
estrogen –> ↑ T4 binding–> ↑ T4 labs
*but actually pt is euthyroid
Good med for wt loss in DM
GLP-1 agonist
↓ appetite
s/s of glucagonoma
rash
DM
GI upset
anemia
Subclinical hypothyroidism
defined as slightly ↑ TSH and normal levels of thyroid hormone (free T4 or free T3 ) in an asymptomatic patient.
