Gastric Fluid Flashcards
Produces HCl and intrinsic factor
Parietal cells
Produces pepsinogen
Chief cells
Specialized G cells
Gastrin
Foveolar cell
Mucus that protects the stomach wall from acid
Tube that passes through the nose
Levin tube
Tube that passes through the mouth
Rehfuss tube
Total gastric secretion during unstimulated, fasting state
Basal Acid Output (BAO)
Duration of collection for BAO
1 hr (four 15-min specimens or a single hour can be used)
BAO collection for insulin hypoglycemia test time
2 hr collection
Total gastric secretion after gastric stimulation
Maximum Acid Output (MAO)
Pentagastrin and histamine collection for MAO time
1 hr (at 15-min intervals)
Test meals for Ewald’s
Bread, Weak Tea, Water
Test meal for Boas
Oatmeal
Test meal for Riegel
Beef steak and mashed potato
Chemical stimulants for gastric tests (most preferred)
Pentagastrin
To assess vagotomy procedure, what stimulant is used
Insulin
Pernicious anemia BAO, MAO, and BAO/MAO ratio
‘0%
Normal BAO, MAO, BAO/MAO ratio
2.5 (BAO), 25.0 (MAO), 10% ratio
Duodenal ulcer BAO, MAO, Ratio
5.0 (BAO), 30.0 (MAO), 17%
Normal gastric color
Pale, gray, slightly mucoid
Normal volume of gastric fluid
20-50 mL
Abnormal fasting specimen gastric fluid amount
> 50 mL
After Ewald’s meal, normal range of gastric fluid
20-60 mL (up to 120 mL)
After alcohol test meal or histamine stimulation gastric fluid volume
45 to 150 mL
Failure to produce a pH < 6.0 following gastric stimulation
Anacidity (Pernicious anemia)
Gastric fluid pH does not fall even after gastric stimulation (absence of free HCl)
Achlorhydria
Diagenex tubeless test specimen
Urine
Principle of Diagenex test
A blue-colored dye (Azure-A) is complexed with an ion-exchange resin, Azure-A is released in proportion to free HCl, absorbed into the blood, and excreted in urine; The amount of excreted dye in urine is an indicator of gastric HCl secretory activity.
