Cystic fibrosis: The Daily PANCE Blueprint

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Cystic fibrosis: The Daily PANCE Blueprint

A 3-year-old child presents with recurrent respiratory infections, failure to thrive, and chronic diarrhea. Which of the following is essential to make a diagnosis of cystic fibrosis?

A. Elevated sweat chloride test
B. Positive family history of cystic fibrosis
C. Chest X-ray showing bronchiectasis
D. Genetic testing showing CFTR mutation
E. Positive newborn screening test

Answer and topic summary

The answer is A. Elevated sweat chloride test

An elevated sweat chloride test is essential for the diagnosis of cystic fibrosis. It measures the concentration of chloride in the sweat, which is abnormally high in individuals with cystic fibrosis. This test is considered the gold standard for diagnosing cystic fibrosis.

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Smarty PANCE Content Blueprint Review:

Covered under ⇒ PANCE Blueprint Pulmonary ⇒ Other Pulmonary Disease ⇒ Cystic fibrosis

Also covered as part of the Pediatric EOR topic list