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CHOLESTEROL LDL, CALCULATED

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Lab Section Category
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Specimen Required

This test is part of a Lipid Panel profile consisting of Total Cholesterol, HDL Cholesterol and Triglycerides tests.

Method

This is a calculated parameter using the Friedewald equation from Total Cholesterol, HDL Cholesterol, Triglyceride concentrations.

Friedewald equation: [LDL Cholesterol] = [Total Cholesterol] - [HDL Cholesterol] - ([Triglycerides] / 2.2]) where all concentrations are given in mmol/L.

Note: LDL Cholesterol Calculated is invalid when Triglycerides concentration is > 4.5 mmol/L.

Reference Interval / Value

Optimal Level : from 0 day : < 2.60 mmol/L
 
Desirable Level : from 0 day : 2.60 - 3.30 mmol/L

Turnaround Time

​Mean = 4 hrs, Range: 3 – 5 hrs

Day(s) Test Set up

​Daily

Change History Notes

  • 02 Jan 2026 09:00 AM

    New test page created on 02 Jan 2026

Back: Pathology Laboratory Services

Last Updated - 04 Feb 2026