The Nurse Is Reviewing the Results of Laboratory and Diagnostic

The nurse is reviewing the results of laboratory and diagnostic tests conducted on a patient experiencing respiratory dysfunction. Which results confirm the nurse's suspicion that the patient has cystic fibrosis?

A) patchy infiltrates on chest x-ray
B) mediastinal shift on chest CT scan
C) oxygen saturation 82% on room air
D) chloride concentration of sweat 85 mEq/L
E) reduced total lung capacity from pulmonary function test