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Test Code LAB4069 CREATININE, URINE, 24HR

Specimen Type

24 hour urine collection

Collection Instructions

Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection.

Specimen Volume

50 mL

Minimum Volume

1 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Room Temp: 2 days
Refrigerated: 6 days
Frozen: 6 months

Specimen Processing

Invert 24 hour urine container several times to mix the specimen.
Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container.
Aliquot 5 mL into a transparent red top tube.
Record collection time and total volume.
Freeze 50ml Specimen Aliquot.

Method

Photometric

Reference Ranges

Collection Period  hours

Volume  mL

Creatinine, Urine g/24h

      Male 1.0-2.4

      Female 0.7-1.6

CPT Codes

82570

Specimen Rejection

Any urine contaminated with fecal material.