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A member asked:
Why is it so hard to find out normal urine creatinine and calcium levels for a 5 yr old if 3, 3 creatinine , 2.4 calcium..what is norm ? shud i worry?
4 doctors weighed in across 2 answers
Need clarification: Is this based upon a "spot urine" single sample or a 24 hour urine collection? Also lab values are best discussed with your child's physician.
Answered 2/6/2015
5k views
Worthless number: The total creatinine put out varies primarily with the total mass of skeletal muscle. You'll never find a "normal" value for either. The concentration is even more variable as it depends on how much water was drunk. The urine creatinine is measured only as something to compare with a semi-constant, the creatinine. People aren't numbers, and we do a disservice focusing on labs apart from history.
Answered 9/13/2013
4.9k views
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