Laboratory Services
Creatinine, Urine, 24 hr
Print this pageUpdated Test Information:
Test Description |
Creatinine, Urine, 24 hr
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Test ID |
UCRE24
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Specimen Type |
Urine
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Specimen Requirements |
Urine, 24 hour collection
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Specimen Collection / Processing Instructions |
Urine, 24 hour collection - For urine, instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Screw the lid on securely. Collection container must be labeled with patient's full name, date, and start/stop times for a 24-hour collection. Collect urine without using additives. If urine must be collected with a preservative for other analytes, only hydrochloric acid (14 to 47 mmol/L urine, e.g. 5 mL 10 % HCl or 5 mL 30 % HCl per liter urine) or boric acid (81 mmol/L, e.g. 5 g per liter urine) may be used.
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Stability |
Urine without preservative:
2 days at 15-25 ˚ C 6 days at 2- 8˚C 6 months at -15 to -25˚C Urine - with preservative: 3 days at 15-25˚C 8 days at 2-8˚C 3 weeks at -15 to -25˚C |
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Methodology |
Colorimetric
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Estimated TAT |
0-2 days
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Testing Schedule |
Monday-Saturday
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CPT Code(s) |
82570
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Reference Range |
Males: 1040-2350 mg/24hr
Female: 740-1570 mg/24 hr |
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Performing Lab |
Incyte Diagnostics
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LOINC Code(s) |
65634-8
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