Chronic kidney dis.: The most common reason is chronic renal disease. If your serum creatinine is high, you likely have the answer.
Answered 4/24/2013
5.2k views
Urine creatinine: Our corresondent is talking about urine creatinine. This may be high because the urine is concentrated (i.e., the person drank little water) or the person is well-muscled. It's not a cause of concern.
Answered 7/8/2014
3.9k views
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