Ordering Recommendation

Acceptable nontraditional secondary cardiovascular risk screen for specific populations.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Fasting specimen recommended.

Collect

Serum separator tube, plasma separator tube, K2EDTA, lithium heparin

Specimen Preparation

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

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks
Stability

After separation from cells: Ambient: 24 hours; Refrigerated: 8 days; Frozen: 2 months

Methodology

Quantitative Immunoturbidimetry

Performed

Sun-Sat

Reported

Within 24 hours

Reference Interval

Test Number
Components
Reference Interval
  Apolipoprotein B
Male Female
55-140 mg/dL 55-125 mg/dL

  Apolipoprotein A-1
Male Female
94-178 mg/dL 101-199 mg/dL

Interpretive Data

The ratio of apolipoprotein B/A can provide an estimate of the risk for major adverse cardiovascular events in adults.


Apolipoprotein B/A Ratio:
Low Risk 0.2 - 0.6
Medium Risk 0.61 - 0.90
High Risk 0.91 - 5.0

Compliance Category

FDA

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