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HelpTest Code CRE Creatinine, serum
Additional Codes
| Epic Ordering Code | LAB66 |
| NBS code | LBC04205 |
| Service code | 31115 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Yellow Top | Light Green Top |
Processing Requirements
Allow specimen to clot for 30 mins (Yellow Top) and centrifuge within 2 hours
Specimen type: Serum/Plasma
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 7 days |
| Refrigerate | 7 days |
| Frozen | 3 months |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | Alert/Reject |
| Others | Not applicable |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – < 1 wk | 25 – 93 umol/L | |
| 1 – 3 wks | 17 – 50 umol/L | |
| 4 wks – 1 yr | 11 – 36 umol/L | |
| 2 – 5 yrs | 20 – 44 umol/L | |
| 6 – 11 yrs | 27 – 58 umol/L | |
| 12 – 14 yrs | 35 – 83 umol/L | 35 – 74 umol/L |
| 15 – 18 yrs | 50 – 100 umol/L | 38 – 82 umol/L |
| ≥ 19 yrs | 60 – 110 umol/L | 45 – 90 umol/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of renal function.
Update
Last updated 16/07/2026
LOINC Code Information
14682-9