Angiotensin - converting enzyme Serum Male: 12-36 IU/L Female: 10-30 IU/L To evaluate Hypertension To diagnose and treat Sarcoidosis Cirrhosis Gaucher's disease Hansen's disease (leprosy) Histoplasmosis Hodgkin's disease Hyperthyroidism Myeloma Pulmonary fibrosis Sarcoidosis Scleroderma Adult respiratory distress syndrome Diabetes Mellitus Hypothyroidism Tuberculosis Steroids