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Secretion of gastric juice
A Increases when food stimulate mucosal cells in the pyloric region
B Is reduced if the vagus nerves are cut
C Is essential for absorption of vitamin B12
D Is associated with a decrease in the PH of venous blood draining the stomach
E Is essential for protein digestion
Gastric hydrochloric acid
A Is secreted by parietal cells of stomach
B Provides necessary PH for action of pepsin
C Stimulates flow of bile
D Secretion is stimulated by sympathetic nerve
E Is stimulated by presence of HCO3- in the stomach
Acidic pH of gastric juice
A Stimulates secretion of secretin
B Helps in iron absorption
C Stimulates secretion of gastrin
D Inhibits protein digestion
E Inactivates pepsinogen
Predisposing Factors for gastric carcinoma include
A Pernicious anaemia
B Infection with Helicobacter pylori
C Alcohol consumption
D Hypercalcaemia
E Hypophosphatemia
The following statements are true concerning gastric carcinoma
A It can metastasis to the ovaries
B It is twice as common in females as in males
C It is linked to patients with type 'O' blood group
D It often presents with a major gastrointestinal haemorrhage
E It is sited mainly on the lesser curvature of the stomach
Risk factors in the aetiology of gastric cancer are
A Helicobacter pylori
B Pernicious anemia
C Adenomatous gastric polyp
D Previous partial gastrectomy
E Gastric tuberculosis
Biochemical changes that occur following prolonged vomiting due to gastric outlet obstruction are
A Hypokalaemia
B Hypochloremia
C Metabolic acidosis
D Hypernatremia
E Hypoalbuminemia
Characteristic features of gastric outlet obstruction include
A Urinary pH <5
B Symptomatic relief after vomiting
C Metabolic acidosis
D Bile Vomiting
E Absent gastric peristalsis
Biochemical changes that occur followingprolonged vomiting due to gastric outlet obstruction are
A Hypokalaemia
B Hypochloremia
C Metabolic acidosis
D Hypernatremia
E Hypoalbuminemia
Following biochemical changes occur in gastric outlet obstruction
A Metabolic alkalosis
B Hypocalcemia
C Hyponatraemia
D Hypochloremia
E Hyperkalaemia

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