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What Is Creatinine?
Creatinine is a breakdown product of creatine, which is an important part of muscle. This article discusses the laboratory test to measure the amount of creatinine in the blood.
Creatinine can also be measured with a urine test. See:
Alternative Names
Serum creatinine
How the test is performed
Blood is 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...
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From Our Sources
Creatinine clearance
Source: ADAM Encyclopedia
The creatinine clearance test compares the level of creatinine in urine with the creatinine level in the blood. (Creatinine is a breakdown product of... Read more »
Creatinine: urine
Source: ADAM Encyclopedia
Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys.... Read more »
Kidney function tests
Source: ADAM Encyclopedia
Kidney function tests are common lab tests used to evaluate how well the kidneys are working. See links below for details of how each test is... Read more »
Rhabdomyolysis
Source: ADAM Encyclopedia
Abnormal urine color (dark, red, or cola colored) General weakness Muscle stiffness or aching (myalgia) Muscle tenderness ... Read more »
Reflux nephropathy
Source: ADAM Encyclopedia
Chronic atrophic pyelonephritis; Vesicoureteric reflux; Nephropathy - reflux; Ureteral refluxSymptomsSome people can have no symptoms from reflux... Read more »
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