ATI RN
ATI Nur 307 Pediatrics Final Exam Questions
Extract:
A child admitted with cystic fibrosis has sodium 128 mg/dL, blood glucose 268 g/dL, potassium 4.2 mq/L, oxygen saturation 88% on 2 L/min.
Question 1 of 5
Which of the following statements by the nurse is accurate about how these values relate to cystic fibrosis?
Correct Answer: D
Rationale: The correct answer is D. Cystic fibrosis affects the movement of sodium and water by causing abnormal chloride transport, leading to thick and sticky mucus in the lungs. This mucus can obstruct airways and predispose to infections. The impaired sodium movement also leads to dehydration and electrolyte imbalances, specifically low sodium levels. This is a hallmark feature of cystic fibrosis.
Incorrect choices:
A: Elevated oxygen saturation levels do not occur in cystic fibrosis. Instead, there is decreased oxygen levels due to impaired gas exchange.
B: Cystic fibrosis primarily affects the lungs and pancreas, not the intestines, so it does not directly impact blood glucose levels.
C: Cystic fibrosis does not directly affect potassium levels; the main electrolyte imbalance is low sodium levels due to abnormal chloride transport.
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Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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