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Test Code 24CRE Creatinine, urine, 24 hr

Additional Codes

Epic Ordering Code LAB3053067
NBS code LBC00274
Service code 31404

Specimen Requirements

Submit the following:

Container:
24 Hr Urine Container

Preservative types accepted: No preservative

Submit cumulative 24-hour urine collection, or a 20 mL aliquot from the completed collection. For aliquots, record the total 24-hour urine volume on the bottle.

 

NUH Outreach: Submit a 20 mL aliquot from the completed 24-hour collection. Record the total 24-hour urine volume on the aliquot bottle.

Processing Requirements

Centrifuge sample before analysis.

Specimen type: 24Hr Urine

Specimen Stability

Specimen Type 24 hr urine
Ambient 2 days
Refrigerate 6 days
Frozen 6 months

Specimen Condition

Haemolysis Not applicable
Icterus Not applicable
Lipaemia Not applicable
Others Not applicable

Methodology

Enzymatic Assay

Days and Times Performed

24 hrs, TAT 1 day

Reference Interval

Male 7.7 – 21.3 mmol/day
Female 5.9 – 14.1 mmol/day

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Confirms completeness of 24 hr urine collection.

Calculate creatinine clearance.

Update

Last updated 31/07/2026

LOINC Code Information

Urine volume, total 3167-4
Creatinine, urine 14683-7
Creatinine, urine, 24 hr 14684-5

Alias

24CRE