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Test Code LIPA1SO Lipoprotein(a), Serum

Additional Codes

Mayo Test Code: LIPA1


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 plastic vial.


Useful For

Cardiovascular disease risk refinement in patients with moderate or high risk based on conventional risk factors or patients with clinical suspicion of residual cardiovascular risk not identified by other lipid parameters

Method Name

Immunoturbidimetric Assay

Reporting Name

Lipoprotein(a), S

Specimen Type

Serum

Specimen Minimum Volume

Serum: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  30 days
  Ambient  24 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
 

Reference Values

≥18 years: <75 nmol/L

 

Reference values have not been established for patients who are younger than 18 years.

Cautions

Epidemiologic studies have shown lipoprotein (a) [Lp(a)] concentrations are lowest in non-Hispanic white, Chinese, and Japanese populations. The Hispanic population has a slightly higher median Lp(a) concentration, and, in the African American population, the median Lp(a) serum concentration is approximately 2 times higher than in the White population.

 

In very rare cases, gammopathy, type IgM (Waldenstrom macroglobulinemia) in particular, may cause unreliable results.

Day(s) Performed

Monday through Sunday

Report Available

1 to 3 days

Specimen Retention Time

7 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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.

CPT Code Information

83695

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LIPA1 Lipoprotein(a), S 43583-4

 

Result ID Test Result Name Result LOINC Value
LIPA1 Lipoprotein(a), S 43583-4

Forms

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

-Cardiovascular Test Request Form (T724)

-General Test Request (T239)