Sign in →

Test Code LAB1860 Apolipoprotein B, Serum

Additional Codes

APOLB


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot serum into plastic vial. Send refrigerated.


Forms

If not ordering electronically, complete, print, and send 1 of the following with the specimen:

-Cardiovascular Test Request Form (T724)

-General Test Request (T239)

Secondary ID

614544

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

 

Confirmation of suspected abetalipoproteinemia or hypobetalipoproteinemia

Method Name

Automated Turbidimetric Immunoassay

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
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

Less than 2 years: Not established

 

2-17 years:

Acceptable: <90 mg/dL

Borderline high: 90-109 mg/dL

High: ≥110 mg/dL

 

Greater than 18 years:

Desirable: <90 mg/dL

Above Desirable: 90-99 mg/dL

Borderline high: 100-119 mg/dL

High: 120-139 mg/dL

Very high: ≥140 mg/dL

Interpretation

Elevated apolipoprotein B (ApoB) confers increased risk of coronary artery disease. ApoB can be used as a therapeutic target analogous to non-HDL-C and LDL-C.

 

Extremely low values of ApoB (<48 mg/dL) are related to malabsorption of food lipids and can lead to polyneuropathy.

Method Description

Anti-apolipoprotein B antibodies react with the antigen in the sample to form antigen:antibody complexes, which, following agglutination, can be measured turbidimetrically.(Package Insert: Tina-quant Apolipoprotein B. Roche Diagnostics; 07/2020)

Day(s) Performed

Monday through Sunday

Report Available

1 to 3 days

Specimen Retention Time

7 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82172

LOINC Code Information

Test ID Test Order Name Order LOINC Value
APOLB Apolipoprotein B, S 1884-6

 

Result ID Test Result Name Result LOINC Value
APOLB Apolipoprotein B, S 1884-6