Test Overview
Immunoturbidimetric
Evaluate abnormalities in lipoprotein fractions. Assess risk for developing coronary heart disease (CHD).
Less than 105 mg/dl (1.05 g/l)
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
2 hours
- Apo B
Specimen Requirements
Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate at 2-8C up to 8 days or freeze at -20C up to 2 months. Freeze only once.
Red top, Green top tube (heparin) or Lavender (EDTA).
0.5 mL serum
0.25 mL serum
Additional Information
Apolipoprotein B is the major protein component of low density lipoprotein (LDL). A significant correlation exists between Apo B and total cholesterol levels, so ApoB can be viewed as a positive risk factor for the development of CHD. Measurement of Apo B and the ratio Apo B/Apo A-1, may provide better predictive power for the assessment of risk for CHD than traditional blood lipid determinations.