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Laboratory: Clinical Biochemistry
Test Name:
CREATININE CLEARANCE (CALCULATED) - (P and U)
Test Code: CRCL
Clinical Information:
When requesting a Creatinine Clearance Test, a Blood and Urine sample must be submitted along with the patient’s height and weight.  The blood sample must be collected during or within 24 hours of the urine collection period.
Collection Devices:
Required urine specimen can be collected in a similar lab approved leak-proof container.
Specimen Required: Collect full tube(s) of blood to applicable fill line
AND 3.0mL urine from a 12h or 24h urine collection, without preservative.
Referral:

Serum:  2.0mL aliquot AND 3mL urine from a 12h or 24h urine collection, without preservative.
Requisition:
Reference Values:
0 - 4 wk:  40-65 mL/min/1.73 m2
≥ 5 wk:     75-125 mL/min/1.73 m2
Availability:
Daily
See Also:
More Information:
Measure the urine volume and record volume. Pour an aliquot of 3mL and refrigerate.