Creatinine, 24-Hour, Urine - Bronson Laboratory Services

Profile Information

Test ID	Reporting Name	Always Performed?	Available Separately?
URCRT	Creatinine, 24-Hour, Urine	Y	N
UCRER	Creatinine, Random Urine	Y	Y
Coll Dur	Collection Duration	Y	N
Ur Vol	Urine Volume	Y	N

Container Type:	24-hour urine container
Optimal Collection Volume:	Entire Collection
Minimum Volume:	Entire Collection
Collection Instructions:	Please click the Mayo link for a complete list of acceptable preservatives. Refrigerate the container during the collection period. The 24-hour volume is required. The start and end dates and times of collection are required. Please click the Urine Collection and Patient Instructions for 24-Hour Urine Collection links for additional collection instructions.
Specimen Transport:	Refrigerate
Processing Instructions:	Measure and record the total volume of the urine collection. Vigorously shake the entire urine container to ensure that all its contents are adequately mixed. Pour off a portion of the urine into a false bottom tube. Centrifuge the false bottom tube.

Specimen Type	Temperature	Time
Urine	Refrigerated	7 days
Urine	Room Temperature	2 days

No total volume recorded or no start and end times.

Urinary creatinine, in conjunction with serum creatinine, is used to calculate the creatinine clearance, a measure of renal function.

Roche Cobas - Enzymatic colorimetric

Gender	Reference Range and Reporting Units
Male	1,000-1,900 mg/24 hours
Female	800-1,700 mg/24 hours

24/7

Same day

Bronson Laboratory, Chemistry - Kalamazoo and Battle Creek

7 days

2161-8