Preferred Sample Type
Suitable Specimen Types
- Serum
- Li Hep Plasma
Sample Processing in Laboratory
UsualSample Preparation
Centrifuge
Turnaround Time
1 daySample Stability
4°CHDL Cholesterol
General Information
High-density lipoproteins (HDL) form a class of lipoproteins, varying somewhat in their size (8-11 nm in diameter) and contents, that carry cholesterol from the body's tissues to the liver. Because HDL can remove cholesterol from atheroma within arteries, and transport it back to the liver for excretion or re-utilization, they are seen as \"good\" lipoproteins. When measuring cholesterol, any contained in HDL particles serves as protection to the body's cardiovascular health. HDL concentrations are one of the factors included in the Framingham risk equations for MI and cardiovascular disease.
Patient Preparation
Fasting sample recommended
Notes
EDTA plasma is not acceptable.
Reference Range
Lower HDL concentrations are asociated with increased risk of cardiovascular disease. The concentration of HDL should be assessed in the context of other risk factors (total cholesterol, smoking, diabetes, hypertension).
Desirable HDL values are:
Males - >1.0 mmol/L
Femailes - >1.2 mmol/L
Specifications
- EQA Scheme?: Yes
- EQA Status: WEQAS