benign hyperpigmentation of the colon
melanosis coli d/t laxative abuse
pseudomembranous colitis
C. diff
villous atrophy
celiac
fecal elastase
chronic pancreatitis d/t pancreatic insufficiency
iron def anemia, dermatitis herpetiformis
celiac disease
bloody diarrhea, undercooked beef
E. coli (EHEC) 0157:H7
what 2 conditions can gastroenteritis cause?
lactase deficiency, or IBS
rectal lactulose
hepatic encephalopathy (confusion due to buildup of ammonia) - causes diarrhea
non-anion gap metabolic acidosis
secretory diarrhea
elevated osmotic gap
osmotic diarrhea
fecal calprotectin
inflammation in GI tract (IBD)
when would you see hyponatremia and hypokalemia?
profuse diarrhea
alarm symptoms
VIPoma
pancreatic cholera (secretory diarrhea)
tea colored urine
cholecystitis
omeprazole is a risk factor for what?
C. diff assoc colitis
malodorous water diarrhea
giardia
- dx: stool antigen
what is a complication and risk factor of toxic megacolon
- at risk of perforation (especially when cecum >10cm)
metabolic acidosis or alkalosis associated with diarrhea?
acidosis
primary sclerosing cholangitis is a complication of what?
UC
norovirus associations
cruise ships, child care
- wash hands with SOAP AND WATER
microscopic colitis
medication induced inflammation
what are the risk factors of acute acute ischemic colitis?
severe, acute crampy abdominal pain (comes out of nowhere)
- followed by bloody BM
acute ischemic colitis