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CRCL, Creatinine Clearance
Urine and Blood Creatinine
*If there is no other blood creatinine order on the same encounter within 24 hours of urine collection a blood order of .CREAT (Creatinine Level) will be reflexed when the urine order is completely activated and should be drawn when the patient returns the timed urine collection.
Note: Blood specimens are acceptable no earlier than 24 hours prior to the start of the urine collection or no later than 24 hours after the collection ends.
If either the blood or urine specimen is not available, the test cannot be performed.