Gastric Fluid Flashcards
Secretex hydrochloric acid and intrinsic factor
Parietal cells of the stomach
Secrete pepsinogen
Zymogen chief cell
Secrete gastrin
Specialized G cells
Composition of normal gastric juice ate the height of digestion
Water
Mineral salts
Pepsin and renin
Particles of food
Free HCl
Mucus
[Wag MagPaPa aFaM]
Pathologic gastric juice
Organic acids
Blood
Bile
Pus and mucus
Trypsin
[ BB POT]
How to Collect gastric juice
Insertion of gastric tube into the stomach
Introduced through the mouth
Rehfuss tube
Inserted through nose
Levin tube
______ is given to fasting px in order to stimulate the secretion of gastric juice
Test meals
Bread and water or weak tea
Ewald’s test meal
Oatmeal, meal for the detection of lactic acid
Boas test meal
Mashed potatoes, broiled beefsteak, bouillon
Riegel’s test meal
Chemical stimulant
Pentagastrin
Histamine
Histalog
Insulin
[PHHI]
Chemical stimulant of choice
Pentagastrin
Normal color of gastric fluid
Pale gray and contain mucus
Volume
Normal: Few mL - 50 mL (30 mL)
Fasting: 20- 100 mL
Large quantity of mucus signifies
Catarrhal type of gastritis
Odor
Odorless or slightly sour
Qualitative test for free hcl
Dimethylamino-azobenzol: cherry red
Gunzberg’s: purplish red
Boa’s: rose-red
Quantitative test for free hcl
Topfer’s method
Topfer’s method is titrated with
NaOH
Topfer’s method NV
25-50 degrees
total acidity indicator
Phenolphthalein
Total acidity NV
50-70 degrees
Total acidity endpoint
Faint pink
Combined hcl indicator
Sodium alizarin
Combined hcl NV
10-15 degrees
Combined hcl endpoint
Violet
Increased free hcl
Hyperchlorhydria
Hyperchlorhydria is associated with
Peptic ulcer
Decreased free hcl
Hypochlorhydria
Hypochlorhydria is associated with
Carcinoma of the stomach and chronic gastritis ( below 3.5 or 1 pH)
Absence of free hcl
Achlorhydria
Achlorhydria is associated with
Carcinoma of stomach and advanced gastric cancer (3.5 or 1 pH)
Most accepted expression of gastric acid secretions the represents the sum of 4 15-minute spx
Maximum acid output (MAO)
Presence of ______ is the indication that free hcl id present in the stomach
Azure blue
Refers to the failure of the stomach acidity to fall lower than 6 pH
Anacidity
It stimulates parietal cells to produce hydrochloric acid
Gastrin
Major digestive enzyme
Pepsin