Sign in →

Test Code LIPOA Lipoprotein(a), Serum

Additional Codes

Epic: LAB563

Mayo: LIPA1


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.


Secondary ID

615007

Useful For

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

Method Name

Immunoturbidimetric Assay

Reporting Name

Lipoprotein(a), S

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
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

Values ≥75 nmol/L may suggest increased risk of coronary heart disease.

Values ≥175 nmol/L is considered a risk-enhancing factor for cardiovascular disease by several professional societies. Clinician-patient discussion of therapeutic strategy is warranted.

 

Reference values have not been established for patients who are less than 18 years of age.

Clinical Reference

1. Emerging Risk Factors Collaboration, Erqou S, Kaptoge S, et al: Lipoprotein(a) concentration and the risk of coronary heart disease, stroke, and nonvascular mortality. JAMA. 2009 Jul 22;302(4):412-423

2. Tsimikas S: A test in context: Lipoprotein(a): Diagnosis, prognosis, controversies, and emerging therapies. J Am Coll Cardiol. 2017 Feb 14;69(6):692-711. doi: 10.1016/j.jacc.2016.11.042

3. Marcovina SM, Koschinsky ML, Albers JJ, Skarlatos S: Report of the National Heart, Lung, and Blood Institute Workshop on Lipoprotein (a) and Cardiovascular Disease: recent advances and future directions. Clin Chem. 2003 Nov;49(11):1785-1796

4. Wilson DP, Jacobson TA, Jones PH, et al: Use of Lipoprotein(a) in clinical practice: A biomarker whose time has come. A scientific statement from the National Lipid Association. J Clin Lipidol. 2019 May-Jun;13(3):374-392. doi: 10.1016/j.jacl.2019.04.010

Method Description

This test is a particle enhanced immunoturbidimetric assay. Human lipoprotein (a) (Lp[a]) agglutinates with the latex particles coated with anti-Lp(a) antibodies.(Package insert: Tina-quant Lipoprotein(a) Gen.2 reagent. Roche Diagnostics; V2.0, 01/2015)

Day(s) Performed

Monday through Sunday

Report Available

1 to 3 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

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)