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HelpTest Code CHOL Total Cholesterol
Specimen Requirements
Submit only one of the following:
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5 mL
Minimum Volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 7 days |
| Refrigerate | 7 days |
| Frozen | 3 months |
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
<18 years old
| Acceptable | <4.4 mmol/L |
|---|---|
| Borderline | 4.4 - 5.1 mmol/L |
| High | >5.1 mmol/L |
≥ 18 years old
| Desirable | <5.2 mmol/L |
|---|---|
| Borderline High | 5.2 – 6.1 mmol/L |
| High | >6.2 mmol/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Identification of hyperlipidaemia and risk for coronary disease.
Service Code
31161
Update
Last updated 01/04/2026
Laboratory Code
LAB60
LOINC Code Information
14647-2