Angiotensin Converting Enzyme (ACE)

Test Code: 147
CPT Codes: 82164
Methodology: KS
Specimen Requirements: 1 mL serum, ambient, refrigerated or frozen
Turn Around Time: 2 – 5 Days
Special Instructions: None
Clinical Utilities: ACE is increased in some cases of active sarcoidosis.  Sensitivity about 75%, specificity about 95%.  Elevated ACE levels will return to normal in sarcoidosis as a result of spontaneous or cortico-steroid-induced remission.  Decreased ACE activity is found in patients having chronic obstructive lung disease, lung cancer, emphysema, and cystic fibrosis.