A 5-year-old boy has a history of growth retardation, pulmonary infections, and bulky, oily, malodorous stools. Which of the following test results would be expected in this patient? A) Abnormal sweat chloride test B) Low C₃ complement level C) Abnormal nitroblue tetrazolium (NBT) dye test D) Positive wheal and flare reaction with antigen scratch testing E) Sputum with Gram-positive diplococci

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Quizplus · Accepted Answer

The symptoms described are characteristic of cystic fibrosis, which is diagnosed with an abnormal sweat chloride test.

A 5-Year-Old Boy Has a History of Growth Retardation, Pulmonary