Medicine- Uworld Flashcards
ATN vs AIN basics
ATN: hypotension, AGs –> BROWN muddy casts
AIN: drugs, abx (PCNs, cef, TMX) –> white blood cells, esopinophils, maculorpapular rash
dense intramembranous deposits that stain + for C3 on renal bx
membranoproliferative glom –> persistent activation of alternative complement pathway
most common kidney stone
calcium oxalate
when is increased fluid intake approp in nephrolithiasis?
when stones are <5mm
- inc urinary flow
- dec urinary solute concentration to prevent further stone formation
plan for hyperkalemia
Shift K out of serum into cells –> insulin/ glucose, inhaled beta ag, NaHCO3
Stabilize cardiac membrane –> calcium carbonate
Removal from body –> diuresis, HD, cation exchange resins
Renal vein thrombosis
complication of nephrotic syndrome (loss of AT III)
most commonly seen in mebranous glomerular nephropathy
RVT p/w: acute hematuria, abdominal pain, fever
aspirin toxicity sx triad
fever, tachypnea, tinnitus
***mixed metabolic acidosis with resp alkalosis, expect to see a relatively nl pH
learn contraction alkalosis
loss of fluid, ie from vomiting, triggers RAAS, which kicks in aldosterone –> inc Na reabsorption at the expense of K/H.
Chronic NSAID use can induce _________ anemia
Fe deficiecny
MEN1
1) Hyperparathyroid/ adenoma –> hypercalcemia
2) pancreatic islet cell neoplasia –> gastrinoma, VIPoma, insulinoma, glucagonoma
3) pituitary adenoma
MEN 2A vs 3B
RET protooncogene
both have: medullary thyroid carcinoma + pheo
2A= parathyroid hyperplasia
2B= mucosal and gastrointestinal neuromas
gastrinoma (ZES) diagnosis
fasting serum gastrin (off PPI one week)
<110 pg/ml= nl
>1000pg/ml= diagnostic
110-1000 –> secretin stimulation test. Secretin should inhibit normally functioning G cells
crunching sound on auscultation following esophageal rupture
hamman’s sign
sponteneous rupture of esophagus from vomiting
borehaav syndrome
offenders in pill induced esophagitis
KCl –> osmotic effect
NSAIDs
Bisphosphonates
Tetracyclines
primary proph for esophageal varices in cirrhosis?
nonselective beta blocker
precipitating factors of hepatic encephalopathy
- low Na, K
- hypovolemia –> diarrhea, too much diuresis
- nitrogen load –> ex GI bleed
- drugs
- TIPS
- infections
how does hypokalemia induce hepatic enceph?
dec K –> inc intracellular H+ to maintain neutrality –> so tublar cells inc NH3 production via glutamine progression
most common bugs isolated in ascites? treatment?
GNR –> e coli, klebsiella
staph
tx with 3rd gen ceph
symmetric circumfrential narrowing on barium swallow
esophageal stricture
- -> progressive dysphagia to solids without weight loss
- bx to ro adenocarcinoma
can be cause by sclerosis, irritants, reflux –> inflammation, or irritatnts
longitudinal tears in mucosal lining near GE junction. Contrasted to esophageal perf that presents with vomiting….
mallory weiss
supportive care generally
borheave
VHL associated cancers
renal cell
pheo
hemangioblastomas
two associations with PBC besides positive AMA antibody, hm, generalized pruritis are….
osetoporosis/ osteomalacia
hyperlipidemia –> xanthelasomas
what is the charcot triad assoc with acute cholangitis?
reynolds pentad?
fever, jaundice, RUQ
+
hypotension, AMS