Nursing Elites

1. Which enzyme digests fiber in the large intestine?

• A. salivary amylase
• B. pancreatic amylase
• C. cellulase
• D. none of the above

Correct answer: D

Rationale: The correct answer is 'none of the above.' Human digestive enzymes like salivary amylase and pancreatic amylase cannot digest fiber. Instead, fiber is fermented by gut bacteria in the large intestine. Cellulase, which is an enzyme produced by some animals and microorganisms, can break down cellulose found in plants, but it is not a human digestive enzyme, making it an incorrect choice in this context.

2. When carbohydrates are eliminated from the diet to lose weight, which nutrients are most likely to become insufficient?

• A. Iron, fiber, and protein
• B. Iron, fiber, and vitamin K
• C. Vitamin A and vitamin C
• D. Iron, fiber, and B vitamins

Correct answer: D

Rationale: Iron, fiber, and B vitamins are most likely to become insufficient when carbohydrates are eliminated from the diet to lose weight. Carbohydrates are a primary source of B vitamins and fiber in the diet. Iron can also be obtained from plant-based sources like legumes and whole grains, which are often eliminated when carbohydrates are restricted. Choices A, B, and C are incorrect because protein, vitamin K, vitamin A, and vitamin C are not primarily sourced from carbohydrates and are less likely to become insufficient solely due to carbohydrate elimination.

3. Does taste perception decline with age, and are individuals taking three or more medications likely to have less taste sensitivity, requiring greater amounts of sodium and sugar to perceive these tastes?

• A. Both statements are true
• B. Both statements are false
• C. The first statement is true; the second is false
• D. The first statement is false; the second is true

Correct answer: A

Rationale: Both statements are indeed true. As people age, their taste perception tends to decline. This change can be further exacerbated by the use of multiple medications, which can potentially dull taste sensitivity even more. Consequently, these individuals often need to consume foods with higher levels of sodium and sugar in order to perceive these tastes. Choices B, C, and D are incorrect because they deny either one or both of these established facts.

4. A 52-year-old male patient recently required surgery for the removal of a large calcium oxalate stone. To prevent further stone formation, the nurse advises against drinking?

• A. apple juice
• B. tea
• C. orange juice
• D. coffee

Correct answer: B

Rationale: Tea contains oxalates, which can contribute to the formation of calcium oxalate stones; therefore, patients prone to kidney stones should avoid excessive tea consumption.

5. What is the term for the act of performing beneficial services rather than harmful ones?

• A. Beneficence
• B. Disclosure
• C. Maleficence
• D. Justice

Correct answer: A

Rationale: The term for the act of performing beneficial services rather than harmful ones is 'Beneficence'. Beneficence refers to actions that enhance the well-being of others. In the healthcare context, beneficence ensures that health services are advantageous and beneficial to patients. 'Disclosure' (choice B) is the act of revealing information, not directly related to whether actions are beneficial or harmful. 'Maleficence' (choice C) is the opposite of beneficence, involving actions that can cause damage or harm. 'Justice' (choice D) denotes fairness and equality, important in various contexts but not specifically related to performing beneficial services.

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