| Laboratory: | Clinical Biochemistry | 
| Test Name: | 
			 CREATININE CLEARANCE (CALCULATED) - (P and U) 
	Test Code:
	CRCL
 
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| 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. 
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| Collection Devices: | 
			 
					Preferred Devices:
				 
				- And - 
					
				
	Required urine specimen can be collected in a similar lab approved leak-proof container.
 
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| 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. 
	
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| Requisition: | |
| Reference Values: | 
				
	 0 - 4 wk:  40-65 mL/min/1.73 m2 
			≥ 5 wk: 75-125 mL/min/1.73 m2  | 
		
| Availability: | 
			 Daily 
			
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| See Also: | |
| More Information: | 
			
	 Measure the urine volume and record volume. Pour an aliquot of 3mL and refrigerate. 
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