Nursing Elites

1. Studies suggest that leukoplakia is resolved by excess vitamin A (a fat-soluble vitamin), retinoids, and beta-carotene. Leukoplakia is a white plaque that forms on oral mucous membranes.

• 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: B

Rationale: Both statements are false. Studies suggest that leukoplakia, a white plaque that forms on oral mucous membranes, can be resolved by vitamin A, retinoids, and beta-carotene. Despite the potential to resolve leukoplakia, relapse is common. Also pertinent, evidence does not indicate that any of these nutrients prevent malignant transformation. The extract provided clarifies that leukoplakia is a white plaque, not an erythematous lesion, and that vitamin A, retinoids, and beta-carotene can help resolve it.

2. What type of drug is lamivudine, used for the management of HIV infection?

• A. CCR5 antagonist
• B. fusion inhibitor
• C. nucleoside reverse transcriptase inhibitor
• D. protease inhibitor

Correct answer: C

Rationale: Lamivudine belongs to the class of nucleoside reverse transcriptase inhibitors (NRTIs), making choice C the correct answer. NRTIs like lamivudine work by inhibiting the reverse transcriptase enzyme, an essential component for the HIV virus to replicate. Choices A, B, and D are incorrect because lamivudine does not function as a CCR5 antagonist, fusion inhibitor, or protease inhibitor in the management of HIV infection.

3. Sickle cell disease is an example of an inherited mistake in the amino acid sequence.

• A. TRUE
• B. FALSE
• C.
• D.

Correct answer: A

Rationale: The statement is TRUE. Sickle cell disease is caused by a genetic mutation in the hemoglobin gene, leading to an abnormal amino acid sequence. This results in the production of abnormal hemoglobin molecules, causing red blood cells to become sickle-shaped. This inherited condition is a classic example of a genetic error affecting the amino acid sequence, making choice A the correct answer. Choices B, C, and D are incorrect as they do not accurately reflect the nature of sickle cell disease.

4. A nurse is caring for a 30-month-old toddler and is preparing a nutritional snack. Which of the following foods is appropriate for the nurse to offer the toddler?

• A. Plain popcorn
• B. Grapes
• C. Raw carrots
• D. Cheese

Correct answer: D

Rationale: Cheese is a safe and nutritious option for toddlers as it provides calcium and protein without posing choking hazards. Plain popcorn, grapes, and raw carrots are not recommended for toddlers due to the potential choking risks they present, especially at a young age.

5. Selective inattention is seen in which level of anxiety?

• A. Mild
• B. Moderate
• C. Severe
• D. Panic

Correct answer: D

Rationale: Selective inattention is a defense mechanism seen in panic-level anxiety. In panic anxiety, individuals may experience selective inattention, where they focus only on specific aspects and ignore others. Mild anxiety does not typically involve selective inattention as individuals can still function effectively. Moderate and severe anxiety may impair attention, but selective inattention is more characteristic of panic-level anxiety.

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