Nursing Elites

1. Which of the following converts starch to disaccharides, and this reaction occurs in the _____?

• A. pancreatic amylases, small intestine
• B. brush border enzymes, small intestine
• C. luminal enzymes, large intestine
• D. pancreatic amylases, pancreas

Correct answer: A

Rationale: The correct answer is A. Pancreatic amylases break down starch into disaccharides in the small intestine. This process occurs in the small intestine, not the large intestine or pancreas. Brush border enzymes act on disaccharides to break them down into monosaccharides, while luminal enzymes are not specifically involved in the conversion of starch to disaccharides.

2. Which of the following terms refers to weakness of both legs and the lower part of the trunk?

• A. Paraparesis
• B. Hemiplegia
• C. Quadriparesis
• D. Paraplegia

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.

3. Each statement regarding the correlation between vitamin D and sun exposure is accurate, except one. Which is the exception?

• A. The body can produce sufficient amounts of vitamin D from sunlight.
• B. UV radiation can convert a precursor of vitamin D to vitamin D3 by penetrating uncovered skin.
• C. Sunscreen blocks the formation of vitamin D3.
• D. By the age of 70 years, the skin generally produces vitamin D at only half the level it did at the age of 20 years.

Correct answer: C

Rationale: While UV radiation can penetrate uncovered skin and convert a precursor of vitamin D to vitamin D3, sunscreen does block the formation of vitamin D3. Sunscreen is recommended by dermatologists to prevent sunburn and reduce the risk of skin cancer. The other choices are correct: the body can produce sufficient vitamin D from sunlight, UV radiation can convert a precursor of vitamin D to vitamin D3, and skin generally produces less vitamin D as a person ages.

4. Is it a good idea for an athlete to eliminate all fat from his diet in order to stay lean?

• A. yes, because dietary fat is stored easily in fat cells and can't be used for energy
• B. no, because fats provide energy during prolonged exercise
• C. yes, because fat is stored under the skin and causes the body to overheat
• D. no, because excess fat is converted to glycogen and stored in the muscles

Correct answer: B

Rationale: Fat is an essential energy source during prolonged exercise, so eliminating it entirely from the diet is not advisable for athletes.

5. During the phallic stage, with which parent must the child identify?

• A. The same-sex parent
• B. The opposite-sex parent
• C. The mother or the primary caregiver
• D. Both parents

Correct answer: A

Rationale: According to Freud's psychosexual development theory, during the phallic stage (approximately ages 3 to 6), the child starts to identify with the parent of the same sex. This identification is a crucial part of the child's development and is believed to influence their adult behavior. The process involves the child adopting the characteristics, attitudes, and values of the same-sex parent. Choice B, C, and D are incorrect as they do not align with Freud's theory of the phallic stage of psychosexual development.

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