Creatinine - urine
Last updated: Thursday, 15, April, 2004
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Random, 24 hour or timed urine collection.
For 24 hour or timed collections, the starting and finishing time must be stated, to the nearest minute, on the specimen container.
| Reference Interval|
Random urine collection is dependent on rate of urine flow.
24 hour collection depends on age, gender, muscle mass, and amount of meat in diet:
Urine creatinine is of no diagnostic value in its own right. It is measured in the following circumstances:
See Creatinine clearance.
Pasternack A and Kuhlback B. Scand J Clin Lab Invest 1971; 27: 1-7.