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HelpTest ID BLOD0415 Apolipoprotein A1 and B, Serum
Useful 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 Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot 1 mL of serum.
Specimen Minimum Volume
0.5 mL
Specimen 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 |
Day(s) Performed
APOA1: Monday through Sunday
APOLB: Monday through Saturday
Report Available
1 to 3 daysMethod Name
Automated Turbidimetric Immunoassay
Reporting Name
Apolipoprotein A1 and B, SPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Secondary ID
607593CPT Code Information
82172 x 2
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 |
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| RBAA1 | Apolipoprotein B/A1 ratio | No | Yes |
| APOA1 | Apolipoprotein A1, S | Yes | Yes |
| APOLB | Apolipoprotein B, S | Yes | Yes |
Forms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.
SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 420 | APO B/A1 RATIO |
| 421 | APOLIPOPROTEIN A1 |
| 423 | APOLIPOPROTEIN B |