Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. This article discusses the test done to measure the amount of creatinine in your urine.
A blood test can also be used to determine your creatinine level. See: Serum creatinine
Urine creatinine test
How the test is performed
A random urine sample or a 24-hour collection may used. For information on how to collect a 24-hour urine sample, see: 24-hour urine collection .
How to prepare for the test
Your health care provider may tell you to temporarily stop taking certain medicines that may interfere with test results. Such medicines include:
How the test will feel
The test involves only normal urination, and there is no discomfort.
Why the test is performed
Definition Blood or urine tests can determine the levels of various hormones in the body. This includes reproductive hormones, thyroid hormones, adrenal hormones, pituitary hormones, and many others. For more information, see: 5-HIAA 17-OH progesterone 17-hydroxycorticosteroids 17-ketosteroids 24-hours urinary aldosterone excretion rate 25-OH Vitamin D Adrenocorticotropic hormone (ACTH) ACTH stimulation test ACTH suppression test ADH Aldosterone Calcitonin Catecholamines - blood Catecholamines - urine Cortisol level Cortisol - urine DHEA-sulfate Folicle stimulating hormone (FSH) Growth hormone HCG (qualitative - blood) HCG (qualitative - urine) HCG (quantitative) Lutenizing hormone (LH) LH response to GnRH Parathormone Renin Pregnanediol Progesterone - serum Prolactin PTH-related peptide RT3U Secretin stimulation test Serotonin T3 T4 Testosterone Thyroid stimulating hormone (TSH) How the test is performed How to prepare for the test How the test will feel Why the test is performed
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