Test Overview
Test Methodology

Immunoturbidimetric

Test Usage

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

Reference Range *

Males: greater than 105 mg/dl (1.05 g/l), Females: greater than 110 mg/dl (1.1 g/l)

Test Details
Days Set Up
Monday, Thursday
Analytic Time

2 hours

Soft Order Code
APOA1
MiChart Code
Apolipoprotein A-1
Synonyms
  • Apo A-1
  • APOLIPOPROTEIN A-1
  • APOA1
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 top (EDTA).
Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Additional Information

Apolipoprotein A-1 is the major protein component of high density lipoprotein (HDL). Several studies have demonstrated that patients with angiographically proven coronary artery disease have lower levels of Apo A-1 than normal individuals. Thus, Apo A-1 can be thought of as a `negative risk factor' for CHD, similar to HDL cholesterol. Measurement of Apo A-1 and the ratio of Apo B/Apo A-1, provides as good or perhaps better predictive power in assessing risk for CHD than the traditional blood lipids, HDL-cholesterol and the cholesterol/HDL cholesterol ratio.

Billing
CPT Code
82172
Fee Code
20749
LOINC
1869-7