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HelpTest Code LDLM LDL-Cholesterol, measured
Additional Codes
| Epic Ordering Code | LAB102 |
| NBS code | LBC04630 |
| Service code | 31165 |
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 |
|---|---|
| Ambient | Not available |
| Refrigerate | 5 days |
| Frozen (-80˚C) | 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 | <2.8 mmol/L |
|---|---|
| Borderline | 2.8 - 3.3 mmol/L |
| High | ≥3.4 mmol/L |
≥ 18 years old
Targets for patients based on risk:
| Very high | <1.4 mmol/L |
|---|---|
| High | <1.8 mmol/L |
| Intermediate | <2.6 mmol/L |
| Borderline | <3.4 mmol/L |
| Low | <4.1 mmol/L |
*Consider evaluating for Familial Hypercholesterolaemia in patients with LDL >4.9 mmol/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Risk factor for Coronary Heart Disease (CHD).
Update
Last updated 26/07/2026
LOINC Code Information
69419-0
Alias
Low-Density Lipoprotein