ATI RN
ATI Nur 223a Sect 4 Pediatrics Final Exam Questions
Extract:
Child who has a suspected diagnosis of cystic fibrosis.
Question 1 of 5
A nurse is caring for a child who has a suspected diagnosis of cystic fibrosis. Which of the following diagnostic tests will confirm the diagnosis?
Correct Answer: D
Rationale: The correct answer is D: Sweat chloride test. Cystic fibrosis is diagnosed by measuring the concentration of chloride in sweat. In individuals with cystic fibrosis, there is an abnormally high concentration of chloride in the sweat due to defects in the CFTR gene. A sweat chloride test is a reliable and specific diagnostic test for confirming cystic fibrosis.
A: Sputum culture is used to identify specific microorganisms causing respiratory infections but does not confirm cystic fibrosis.
B: Stool fat content analysis is used to diagnose malabsorption disorders, not cystic fibrosis.
C: Pulmonary function tests assess lung function but do not confirm cystic fibrosis.
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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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