ATI RN
ATI Pediatrics Unit 2 Exam Questions
Extract:
A nurse is caring for a 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: B
Rationale: The correct answer is B, the sweat chloride test. This test is the gold standard for confirming a diagnosis of cystic fibrosis. In cystic fibrosis, there is a defect in the transport of chloride ions across the epithelial cell membrane, leading to increased chloride in sweat. A high sweat chloride concentration (>60 mEq/L) is indicative of cystic fibrosis.
The other options are incorrect because:
A: A stool fat content analysis is used to assess fat malabsorption, not specific to cystic fibrosis.
C: Pulmonary function tests can assess lung function in cystic fibrosis but do not confirm the diagnosis.
D: A sputum culture can identify respiratory infections common in cystic fibrosis but does not confirm the diagnosis.
Extract:
Question 2 of 5
Correct Answer:
Rationale:
Question 3 of 5
Correct Answer:
Rationale:
Question 4 of 5
Correct Answer:
Rationale:
Question 5 of 5
Correct Answer:
Rationale: