Apolipoprotein B/A Ratio
Label Mnemonic: APOBAR
Epic Lab Code: LAB2610
Downtime Form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mail-out Laboratory
5231 RCP
Collection Medium:
Red top tube 5 mL (Clot Activator)
Adult preferred minimum: 1 mL serum from fasting collection
Adult/Pediatric absolute minimum: 0.5 mL serum from fasting collection
Rejection Criteria:
Plasma, severely lipemic or hemolyzed specimens
Turn Around Time:
24 hours upon receipt at reference laboratory
Reference Range:
Components Reference Interval Apolipoprotein, A-1 Male: 94-178 mg/dL Female: 101-199 ng/dL Apolipoprotein, B Male: 55-140 mg/dL Female: 55-125 ng/dL Apolipoprotein B/A Ratio No reference interval
The ratio of Apolipoprotein B-100/Apolipoprotein A-1 can provide relative risk factors for a reasonable approximation of coronary atherosclerotic risk. Apolipoprotein B/A Male Female 1/2 Average Risk 0.4 0.3 Twice Average Risk 1.0 0.9 Three Times Average Risk 1.6 1.5
CPT Code:
Apo B 82172, Apo A-1 82172
See Additional Information:
Fasting Specimen Requirements