Nokea
A client with an elevated amylase level asks the nurse about the altered value. The nurse bases a response on knowledge that amylase:
- A. Is an enzyme from the pancreas needed for carbohydrate digestion
- B. Plays no significant role in physiological processes
- C. Is an enzyme from the pancreas needed for fat digestion
- D. Is an enzyme from the pancreas that is the major component of bile
Correct Answer: A
Rationale: Amylase, produced by the pancreas, digests carbohydrates into sugars.
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The loop of Henle pumps sodium ions from the ascending arm to the descending. What is this called?
- A. Counter current subtractor
- B. Counter current divider
- C. Counter current concentrator
- D. Counter current multiplier
Correct Answer: D
Rationale: The countercurrent multiplier in the loop of Henle concentrates urine by moving sodium ions.
How many nephrons are found in each kidney?
- A. approximately one hundred
- B. approximately one thousand
- C. approximately one million
- D. approximately ten million
Correct Answer: C
Rationale: Each kidney contains about one million nephrons, the functional units for filtration.
What is the site of amino acids absorption in human's small intestine?
- A. Duodenum
- B. Jejunum
- C. Ileum
- D. Both (2) and (3)
Correct Answer: D
Rationale: Amino acids are absorbed mainly in the jejunum and ileum of the small intestine.
Ptyalin is secreted by and work in medium.
- A. Stomach, acidic
- B. Salivary gland, slightly acidic
- C. Pancreas, alkaline
- D. Bile, alkaline
Correct Answer: B
Rationale: Ptyalin (salivary amylase) is secreted by salivary glands and works in a slightly acidic to neutral pH.
Secretion of enterogastrone would be stimulated by the presence of:
- A. protein in the small intestine
- B. protein in the stomach
- C. fat in the small intestine
- D. fat in the stomach
Correct Answer: C
Rationale: Enterogastrone secretion is triggered by fats in the small intestine to slow gastric emptying.