ACE LEVELS - This is a blood test which measures the concentration of angiotensin converting enzyme (ACE) in the bloodstream. Elevations in ACE are seen sarcoidosis, histoplasmosis, alcoholic cirrhosis, asbestosis, berylliosis, diabetes, Hodgkin's disease, hyperthyroidism, amyloidosis, primary biliary cirrhosis, idiopathic pulmonary fibrosis, pulmonary embolism, scleroderma, silicosis, tuberculosis, Gaucher's disease, and leprosy. The normal values are 18 to 67 U/ml over 20 years of age (people under 20 have higher levels).