LDL Cholesterol
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Total cholesterol
unit mg/dL mmol/L
HDL Cholesterol
unit mg/dL mmol/L
Triglycerides (mg/dL)
R e s u l t s
LDL Cholesterol (mmol/L)
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LDL Cholesterol

The estimation of the concentration of plasma LDL is an important requirement for the classification of hyperlipidemia into the different types of hyperlipoproteinemia.

The plasma LDL concentration is measured using Friedewald's method based upon the concentrations of plasma total cholesterol, triglycerides, and HDL.

LDL Cholesterol = Tot.Cholesterol - HDL Cholesterol - (Triglycerides ÷ 5)

Reference:

  • Friedewald WT, Levy RI, Fredrickson DS. Estimation of the Concentration of Low-Density Lipoprotein Cholesterolin Plasma, Without Use of the Preparative Ultracentrifuge. Clinical chemistry 1972;18(6:499-502).