Gastric Fluid Flashcards
What does parietal cells produce
HCl and Intrinsic Factor
What is required for Vitamin B12 absorption
Intrinsic Factor
It produces pepsinogen
Peptic cell/Chief cell
It catalyzes the degradation of proteins
Pespsinogen
It produces gastrin
Specialized G cells
It hydrolyze peptide and disaccharides and converts pepsinogen to pepsin
HCl
It is a mucus-producing cells that cover the inside of the stomach
Faveolar/Goblet cell
It acts as a barrier to protect gastric mucosa from acid autodigestion
Mucus
A major digestive enzyme catalyzing proteolysis at pH 1.6 to 3.6
Pepsin
At what pH does pepsin catalyzes proteolysis
1.6 to 3.6
It is important in the digestion of fats especially when pancreatic function is not well developed (in neonates) or is compromised (in cystic fibrosis)
Gastric lipase
What are the pathological contents of gastric juice
Organic acids (chiefly lactic acid)
Blood,
Bile
Pus and Mucus
Trypsin
It is a non-beta islet cell adenoma of the pancreas
Zollinger-Ellison Syndrome
It is an anti-parietal cell and anti-intrinsic factor antibody
Pernicious Anemia
In gastric fluid collection how many hours should the px fast?
12 or 15 hours with no mediation
TRUE or FALSE. Px are not allowed to swallow large amount of saliva during collection
TRUE
Method of collection for gastric fluid collection
gastric aspiration
For gastric and duodenal contents collection, with METAL TIP, swallowed by gravity, inserted through the MOUTH
Rehfuss Tube
Gastric collection, rubber, smallest diameter, inserted through the NOSE
Levine Tube
Translucent pale gray w/ Mucus; faint acrid or sour
Normal gastric fluid
Large amount of bile
Yellow-green
Small amount of blood
Red
Normal volume (fasting specimen)
20-100 mL
Normal gastric pH
1.5-3.5 or 1.6-1.9
Total gastric secretion during unstimulated, fasting state
Basal Acid Output
Total gastric secretion after gastric stimulation
Maximum Acid Output
Synthetic analog of gastrin and the stimulant of choice (most preferred)
Pentagastrin
Histamine isomer with preferential effect on gastric acid secretion
Histalog
Normal Basic Acid Output (BAO)
0-6 mEq/hr (mmol/hr)
Normal Maximum Acid Output (MAO)
5-40 mEq/hr (mmol/hr)
Normal BAO/MAO
<0.4
Test meal that uses bread and tea without sugar or water
Routinely used
Ewald’s meal