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,
If a person has a low PSA can you attribute this to any particular factor or factors? In other words are there any medical reasons for a low PSA? A friend told me that there has to be mitigating factors for this low score.
A low PSA is usually desirable as it will be associated with a lower likelihood of prostate cancer . Prostate cancer is not always associated with an elevated PSA as tumors that are very high grade may be associated with normal PSA . This occurs because high-grade tumors are very dissimilar to normal prostate, and as a result lose their ability to secrete PSA. Most often these patients will have very abnormal digital rectal examination. Patients taking Proscar or Avodart may often have low PSA values. This group of patients needs to have careful scrutiny of the interpretation of their PSA.
Alternative Names Triacylglycerol test Normal Values Normal : Less than 150 mg/dL Borderline High : 150 - 199 mg/dL High : 200 - 499 mg/dL Very High : 500 mg/dL or above What abnormal results mean High triglyceride levels may be due to: Cirrhosis Diet low in protein and high in carbohydrates Familial hyperlipoproteinemia (rare) Hypothyroidism Nephrotic syndrome Pancreatitis Poorly controlled diabetes Low triglyceride levels may be due to: Low fat diet Hyperthyroidism Malabsorption syndrome Malnutrition Additional conditions under which the test may be performed: Chylomicronemia syndrome Hyperlipidemia; acquired Familial combined hyperlipidemia Familial dysbetalipoproteinemia Familial hypertriglyceridemia Familial lipoprotein lipase deficiency Noninsulin-dependent diabetes (NIDD) Stroke secondary to atherosclerosis
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