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| Lab Section Category | |
| Specimen Required |
3 mL EDTA blood. Avoid haemolysis. |
| Storage/Transport |
Keep cold with ice and send immediately to the laboratory. |
| Method |
Enzymatic Spectrophotometry |
| Reference Interval / Value |
≥ 18 yrs : < 15.0 µmol/L |
| Turnaround Time |
Mean = 4 hrs, Range: 3 – 5 hrs |
| Day(s) Test Set up |
Daily |
Change History Notes
02 Feb 2026 09:00 AM
Reference Interval and Method are updated on 2 Feb 2026.
13 Apr 2020 05:20 PM
Storage and Transport, and Reference Interval are updated on 13 Apr 2020.
Last Updated - 07 Feb 2026
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