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HelpTest ID APOAB Apolipoprotein A1 and B, Serum
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL serum
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Secondary ID
607593Useful For
Assessment of cardiovascular risk
Follow-up studies in individuals with basic lipid measures inconsistent with risk factors or clinical presentation
Definitive studies of cardiac risk factors in individuals with significant family histories of coronary artery disease or other increased risk factors
Specimen Type
SerumSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 8 days |
| Frozen | 60 days | |
| Ambient | 24 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | Reject |
Reference Values
Males
|
Age |
Apolipoprotein A (mg/dL) |
Apolipoprotein B (mg/dL) |
Apolipoprotein B/A1 ratio |
|
<24 months |
Not established |
Not established |
Not established |
|
2-17 years |
Low: <115 Borderline low: 115-120 Acceptable: >120 |
Acceptable: <90 Borderline high: 90-109 High: ≥110 |
<0.8 |
|
≥18 years |
≥120 |
Desirable: <90 Above Desirable: 90-99 Borderline high: 100-119 High: 120-139 Very high: ≥140 |
Lower Risk: <0.7 Average Risk: 0.7-0.9 Higher Risk: >0.9 |
Females
|
Age |
Apolipoprotein A (mg/dL) |
Apolipoprotein B (mg/dL) |
Apolipoprotein B/A1 ratio |
|
<24 months |
Not established |
Not established |
Not established |
|
2-17 years |
Low: <115 Borderline low: 115-120 Acceptable: >120 |
Acceptable: <90 Borderline high: 90-109 High: ≥110 |
<0.8 |
|
≥18 years |
≥140 |
Desirable: <90 Above Desirable: 90-99 Borderline high: 100-119 High: 120-139 Very high: ≥140 |
Lower Risk: <0.6 Average Risk: 0.6-0.8 Higher Risk: >0.8 |
Day(s) Performed
Monday through Sunday
Report Available
1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82172 x 2
Forms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.