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. What is the term for a barrier that prevents the normal emptying of stomach contents into the duodenum?

• A. Dumping syndrome
• B. Gastritis
• C. Gastric outlet obstruction
• D. Hypochlorhydria

Correct answer: C

Rationale: Gastric outlet obstruction refers to a condition where the opening between the stomach and the duodenum is blocked, preventing the normal passage of food. This is why choice 'C' is correct. 'A: Dumping syndrome' is incorrect because it is a condition where stomach contents move too quickly through the small intestine, not a barrier preventing emptying. 'B: Gastritis' is inflammation of the stomach lining, not a blockage of the outlet. 'D: Hypochlorhydria' refers to low stomach acid, which may affect digestion but does not create a physical barrier blocking the outlet of the stomach.

3. A client at risk for iron-deficiency anemia is being taught by a nurse about optimizing dietary intake of iron. The nurse should explain that which of the following sources of iron is easiest for the body to absorb?

• A. Spinach
• B. Cantaloupe
• C. Chicken
• D. Lentils

Correct answer: C

Rationale: The correct answer is 'Chicken.' Chicken contains heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based sources like spinach, cantaloupe, and lentils. Heme iron, as present in chicken, is more bioavailable and is better absorbed by the body, making it an excellent source of iron for individuals at risk of iron-deficiency anemia. Spinach, cantaloupe, and lentils contain non-heme iron, which is not as efficiently absorbed as heme iron.

4. Clients may benefit from slightly higher fat intakes than are normally recommended if they have:

• A. congestive heart failure
• B. cerebrovascular accident
• C. peripheral vascular disease
• D. chronic obstructive pulmonary disease

Correct answer: D

Rationale: In chronic obstructive pulmonary disease (COPD), higher fat intake can be beneficial because it provides more calories with less respiratory burden compared to carbohydrates. Choices A, B, and C are incorrect because congestive heart failure, cerebrovascular accident, and peripheral vascular disease do not specifically benefit from higher fat intakes as in COPD.

5. The lobe of the brain that contains the auditory receptive areas is the ____________ lobe.

• A. temporal
• B. frontal
• C. parietal
• D. occipital

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

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