Apolipoprotein B/A Ratio
0050028
 
Ordering Recommendation
Not usually recommended for cardiovascular disease risk assessment.
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
0050030Apolipoprotein A-​1 Male: 94-​178 mg/dL
Female: 101-​199 mg/dL
0050029Apolipoprotein 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
Note
CPT Code(s)
82172 x2
Components
Component Test Code*Component Chart Name
0050027Apolipoprotein B/A Ratio
0050029Apolipoprotein B
0050030Apolipoprotein A-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Apolipoprotein A-1 & B
  • Apolipoprotein APO A/B Ratio