What is Creatinine?
Creatinine is a waste product of creatine phosphate (or phosphocreatine), found primarily in skeletal muscle tissue
Creatinine enters the bloodstream, is filtered by the renal glomeruli and is excreted by the kidneys in the urine.
Why measure creatinine?
Creatinine is considered an index of renal function and is therefore useful for detecting any abnormalities.
Since creatinine remains on average constant, the examination of creatininemia is helpful in highlighting renal dysfunction.
Are there preparation rules for the creatinine test?
The sampling is usually done in the morning.
Your doctor will suggest whether you need to fast.
Is it dangerous or painful?
The exam is neither dangerous nor painful.
The patient can feel the sting as the needle enters the arm.
The test is performed with a simple blood sample.
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