The CPK isoenzymes test measures the different forms of creatine phosphokinase (CPK) in the blood. CPK is an enzyme found mainly in the heart, brain, and skeletal muscle.
See also: Creatine phosphokinase test
Creatine phosphokinase - isoenzymes; Creatine kinase - isoenzymes; CK - isoenzymes
How the test is performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.
Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.
Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.
In infants or ...
Dear Dr. Motola,
Four years ago I had surgery for a left inguinal
hernia, which unfortunately resulted in uncorrected internal post-op bleeding
causing ischemia and subsequent atrophy to the left testicle. Until
recently, I've never had my testosterone level checked against the reference
range. I am 83 years old and in very good health. I am told the normal
reference range is 200 to 900, hence my question ... is 259 good or bad
and is it dependent upon both testes functioning? My PSA level averages
3.5 and DRE tests are always normal. I have BPH . I am sexually active but not
as frequently as in the past.
start to fall after age 40. Symptoms
associated with decreased levels include memory loss, mood changes, depression ,
increased fat mass, loss of muscle mass, and a decrease in sexual function. These
symptoms are also associated with the aging process. Many times patients may
experience some of these symptoms, h...
Alternative Names Serum angiotensin-converting enzyme; SACE Normal Values Normal values vary based on your age and the test method used. Typically, adults have ACE levels less than 40 micrograms/L. Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results. What abnormal results mean Increased ACE levels may be a sign of sarcoidosis. However, increased ACE levels may also be seen in several other disorders, including: Active histoplasmosis Amyloidosis Asbestosis Berylliosis Diabetes Emphysema Gaucher's disease Hepatitis Hodgkin's disease Hyperthyroidism Idiopathic pulmonary fibrosis Leprosy Lung cancer Nephrotic syndrome Primary biliary cirrhosis Pulmonary embolism Scleroderma Silicosis Tuberculosis A decrease in ACE levels may indicate: Steroid therapy (usually prednisone) Therapy for sarcoidosis
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