Nursing Elites

1. At which age do most infants begin to fear strangers?

• A. 2 months
• B. 4 months
• C. 6 months
• D. 12 months

Correct answer: C

Rationale: Fear of strangers typically begins around 6 months as infants start recognizing familiar and unfamiliar faces, which is part of their social development.

2. What diagnostic test allows visualization of renal parenchyma and renal pelvis without exposure to external-beam radiation or radioactive isotopes?

• A. Renal ultrasonography
• B. Computed tomography
• C. Intravenous pyelography
• D. Voiding cystourethrography

Correct answer: A

Rationale: Renal ultrasonography provides imaging of the renal parenchyma and pelvis without the risks associated with radiation or radioactive isotopes, making it a safer option, especially for children.

3. An infant, age 5 months, is brought to the clinic by his parents for a well-baby checkup. What is the best advice that the nurse should include at this time about injury prevention?

• A. Keep buttons, beads, and other small objects out of his reach.
• B. Do not permit him to chew paint from window ledges because he might absorb too much lead.
• C. When he learns to roll over, you must supervise him whenever he is on a surface from which he might fall.
• D. Lock the crib sides securely because he may stand and lean against them and fall out of bed.

Correct answer: A

Rationale: Small objects are a choking hazard for infants, so it is crucial to keep them out of reach to prevent injury.

4. The mother of an infant diagnosed with bronchiolitis asks the nurse what causes the disease. How should the nurse respond?

• A. Respiratory syncytial virus (RSV)
• B. Haemophilus influenzae
• C. Parainfluenza
• D. Rotavirus

Correct answer: A

Rationale: The correct answer is A: Respiratory syncytial virus (RSV). RSV is the most common cause of bronchiolitis, especially in infants. Bronchiolitis is characterized by inflammation of the small airways in the lungs. Choice B, Haemophilus influenzae, is a bacterium that can cause respiratory infections but is not the primary cause of bronchiolitis. Choice C, Parainfluenza, is a common viral infection that can cause croup and other respiratory illnesses but is not the main cause of bronchiolitis. Choice D, Rotavirus, is a virus that primarily affects the gastrointestinal system, causing diarrhea and vomiting, and is not associated with bronchiolitis.

5. What is a common cause of acquired aplastic anemia in children?

• A. Deficient diet
• B. Ingestion of drugs such as chloramphenicol or antiepileptics
• C. Congenital defects
• D. Injury

Correct answer: B

Rationale: The correct answer is B. Acquired aplastic anemia in children is often caused by exposure to certain drugs, such as chloramphenicol or antiepileptics, which can lead to bone marrow failure and a decrease in all types of blood cells. Choices A, C, and D are incorrect because aplastic anemia is not commonly caused by deficient diet, congenital defects, or injury in children.

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