Test Overview
Test Methodology

Immunoturbidimetric

Test Usage

Evaluate abnormalities in lipoprotein fractions. Assess risk for developing coronary heart disease (CHD).

Reference Range *

Less than 105 mg/dl (1.05 g/l)

Test Details
Days Set Up
Monday, Thursday
Analytic Time

2 hours

Soft Order Code
APOB
MiChart Code
Apolipoprotein B
Synonyms
  • Apo B
  • APOLIPOPROTEIN B
  • APOB
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect specimen in SST tube after an overnight (12 hours) fast . Centrifuge, aliquot serum into a plastic vial and refrigerate.

Special Handling

Fasting specimen.

Alternate Specimen
Red top, Green top tube (heparin) or Lavender (EDTA).
Normal Volume
0.5 mL serum
Minimum Volume
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.

Billing
CPT Code
82172
Fee Code
20750
LOINC
1884-6