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?
A sputum culture
Sweat chloride test
A stool fat content analysis
Pulmonary function tests
The Correct Answer is B
A. A sputum culture may be performed to identify respiratory infections but does not confirm cystic fibrosis.
B. The sweat chloride test is the gold standard diagnostic test for cystic fibrosis, measuring chloride levels in sweat.
C. A stool fat content analysis may be performed to assess pancreatic function in cystic fibrosis, but it does not confirm the diagnosis.
D. Pulmonary function tests may reveal characteristic patterns of lung disease in cystic fibrosis but are not diagnostic on their own.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Obtaining a throat culture may exacerbate airway obstruction and is not a priority.
B. Placing the child in an upright position helps facilitate breathing and is a priority intervention.
C. Visualizing the epiglottis with a tongue depressor can trigger laryngospasm and worsen airway obstruction.
D. Transporting the child for a throat x-ray can delay immediate interventions for airway management.
Correct Answer is D
Explanation
A. Assessing parental anxiety is important but not the priority immediately after admission.
B. Pain assessment is important but not the priority assessment in acute rheumatic fever.
C. Assessing the erythematous rash is relevant but not the priority compared to cardiac assessment.
D. Auscultating the rate and characteristics of the child's heart sounds is crucial for early detection of cardiac involvement, which is a priority in acute rheumatic fever.
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