Ordering Recommendation

Acceptable nontraditional secondary cardiovascular risk screen for specific populations.

Mnemonic
APO B/A
Methodology

Quantitative Nephelometry

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Fasting specimen recommended.

Collect

Serum separator tube.

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 8 hours; Refrigerated: 8 days; Frozen: 3 months

Reference Interval
Test Number
Components
Reference Interval
0050030 Apolipoprotein A-1 Male: 94-178 mg/dL
Female: 101-199 mg/dL
0050029 Apolipoprotein B Male: 55-140 mg/dL
Female: 55-125 mg/dL
  Apolipoprotein B/A Ratio No reference interval

Interpretive Data

The ratio of apolipoprotein B/apolipoprotein A-1 can provide an estimate of the relative risk for coronary atherosclerotic disease.


Relative Risk: Apolipoprotein B/A-1
Male
Female
One Half Average Risk 0.4 0.3
Average Risk 1.0 0.9
Twice Average Risk 1.6 1.5

No compliance statements are in use for this test.

Note
Hotline History
N/A
CPT Codes

82172 x2

Components
Component Test Code* Component Chart Name LOINC
0050027 Apolipoprotein B/A Ratio 1874-7
0050029 Apolipoprotein B 1871-3
0050030 Apolipoprotein A-1 1869-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Apo B & A ratio
  • Apolipoprotein A-1 & B
  • Apolipoprotein A1 and B, Plasma
  • Apolipoprotein A1 and B-100, Plasma
  • Apolipoprotein APO A/B Ratio
Apolipoprotein B/A Ratio