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Test Code Billings Clinic#8185 Mayo#LIPA1 Lipoprotein(a), Serum

Reporting Name

Lipoprotein(a), S

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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


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

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


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

 

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

Interpretation

Lipoprotein (a) [Lp(a)] concentrations of 75 nmol/L and above are linearly related to increased risk of cardiovascular events independent of conventional risk markers.

 

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

 

Values ≥125 nmol/L are considered a risk-enhancing factor for cardiovascular disease by several professional societies. Clinician-patient discussion of therapeutic strategy is warranted.

Day(s) Performed

Monday through Sunday

Report Available

1 to 3 days

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)