Stomach Flashcards
(63 cards)
Diagnostic criteria for Zollinger-Ellison Syndrome (2)
fasting gastrin > 1000
pH < 2
Gastrin increase w/ secretin stimulation for ZES
> 120
Antibodies positive in celiac (2)
anti-tTG IgA
EMA
Follow-up testing for celiac (2)
total IgA for IgA deficiency
repeat anti-tTG IgA after 6-12 months gluten free
Biopsy findings for celiac
villous atrophy
Route through the stomach
cardia - fungus - body - antrum
Fundus function
gas storage
Body of stomach function
food digestion
Antrum function
churning
Key regulators/stimulators of gastric acid (3)
1) gastrin
2) histamine - released from enterochromaffin-like cells
3) acetylcholine - released by vagal stimulation
Tests for H. pylori diagnosis (3)
urea breath
stool antigen
biopsy via EGD
Common supplementation needed post-gastrectomy (3)
vitamin B12
iron
calcium
Testing for H. pylori eradication (2)
1) urea breath test
2) or stool antigen after 4 wks
Gastric emptying study parameters (3)
<60% at 2 hrs
<10% at 4 hours
half-life > 90 minutes
Treatment of severe cases of salmonella
ciprofloxacin 500 mg BID for 5-7 days
Most common location of gastric ulcer
antrum
Pain timing of gastric vs duodenal ulcer
gastric: soon after eating
duodenal: 2-5 hrs later, usually relieved by food
Acid exposure time on ambulatory pH monitoring for GERD
> 4.2% of 24 hrs
Diagnosis of carcinoid syndrome
elevated 24-hr urinary 5-HIAA
Ulcer pain that improves w/ food
duodenal
Ulcer pain that worsens w/ food
gastric
Screening required following carcinoid diagnosis
cardiac valvulopathy
Most common location of NSAID-induced ulcer
stomach
Most common location of H. pylori-induced ulcer
duodenum
