Nursing Elites

1. Which laboratory test would be most important for the nurse to assess when caring for a toddler suspected of having cystic fibrosis?

• A. Liver enzymes
• B. Serum calcium
• C. Sweat chloride test
• D. Urine creatinine

Correct answer: C

Rationale: The sweat chloride test is the primary diagnostic test for cystic fibrosis. Cystic fibrosis is characterized by abnormal transport of chloride and sodium across epithelial cell membranes, leading to increased chloride in sweat. This test is crucial for diagnosing cystic fibrosis in suspected cases. Liver enzymes (Choice A), serum calcium (Choice B), and urine creatinine (Choice D) are not specific tests for cystic fibrosis and would not provide the necessary information for diagnosis in this case.

2. At what age is it safe to give infants whole milk instead of commercial infant formula?

• A. 6 months
• B. 9 months
• C. 12 months
• D. 18 months

Correct answer: C

Rationale: Whole milk should not be introduced before 12 months because it lacks the necessary nutrients, such as iron, that infants need for proper growth and development.

3. Where is the best place to observe for the presence of petechiae in dark-skinned individuals?

• A. Face
• B. Buttocks
• C. Oral mucosa
• D. Palms and soles

Correct answer: C

Rationale: The oral mucosa and conjunctivae are the best places to observe petechiae in dark-skinned individuals because these areas have less pigmentation.

4. When auscultating an infant's lungs, the nurse detects diminished breath sounds. What should the nurse interpret this as?

• A. Suggestive of chronic pulmonary disease
• B. Suggestive of impending respiratory failure
• C. An abnormal finding warranting investigation
• D. A normal finding in infants younger than 1 year of age

Correct answer: C

Rationale: Diminished breath sounds in an infant are an abnormal finding and warrant further investigation to rule out conditions like atelectasis or pneumonia.

5. What is the appropriate method for measuring the temperature of a 2-day-old neonate?

• A. Tympanic
• B. Oral
• C. Axillary
• D. Rectal

Correct answer: C

Rationale: For a 2-day-old neonate, the most suitable method to measure temperature is the axillary method. This approach is considered safe and appropriate for neonates, minimizing the risk of injury. Tympanic temperature measurement may not be as accurate in neonates due to their small ear canals. Oral temperature measurement is not recommended for neonates as they may not be able to hold a thermometer properly in their mouths. Rectal temperature measurement is invasive and carries a higher risk of injury and should be avoided unless absolutely necessary.

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