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Which one differ from the category of other three-
- A. Gastrin
- B. Glucagon
- C. Secretin
- D. Ptyalin
Correct Answer: D
Rationale: Ptyalin is an enzyme, while the others are hormones.
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A client is being prepared for a colonoscopy, a test to visualize the large intestine. The nurse is aware that this examination will assist in identification of pathology of the:
- A. Large intestine
- B. Stomach
- C. Small intestine
- D. Esophagus
Correct Answer: A
Rationale: A colonoscopy visualizes the large intestine to detect abnormalities.
Amylase enzyme acts on which substrate ______________.
- A. Protein.
- B. Carbohydrates.
- C. Fatty acids.
- D. Fat.
Correct Answer: B
Rationale: Amylase is an enzyme that breaks down carbohydrates into simpler sugars like maltose and dextrin.
Secretin is a hormone that:
- A. stimulates the release of pancreatic fluid
- B. converts trypsinogen into trypsin
- C. activates chymotrypsin
- D. inhibits the action of pancreatic lipase
Correct Answer: A
Rationale: Secretin stimulates the pancreas to release bicarbonate-rich fluids to neutralize stomach acid.
Islets of Langerhans and are found in
- A. Modified lymph glands, pancreas
- B. Ductless glands, pancreas
- C. Specialized area, pituitary
- D. Small tubules, kidney
Correct Answer: B
Rationale: Islets of Langerhans are endocrine (ductless) glands in the pancreas that secrete hormones like insulin.
When suggesting menu options to a group of senior citizens, the nurse is careful to include which of the following choices that would enhance normal physiology and prevent the problem of constipation?
- A. Whole grains
- B. Highly spiced or flavored foods
- C. Limiting fluids
- D. Salads and fresh fruits
Correct Answer: A
Rationale: Whole grains increase fiber intake, promoting bowel regularity and preventing constipation.