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HelpTest Code CRE Creatinine, serum
Specimen Requirements
Submit only one of the followings
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
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Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5mL
Minimum Volume: 0.5mL plasma
Collection Instructions: Centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum/Plasma |
|---|---|
| Ambient: | 7 days |
| Refrigerate: | 7 days |
| Frozen: | 3 months |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – <1 week | 25 – 93 umol/L | |
| 1- 3 weeks | 17 – 50 umol/L | |
| 4 weeks - 1yr | 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 |
Days and Times Performed
24 hours, TAT 1 day
Methodology
Enzymatic
Service Code
31115
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of Renal function.