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Test Code PLACA Lipoprotein-Associated Phospholipase A2 Activity, Serum

Useful For

Identifying persons at increased risk for coronary heart disease events

Method Name

Enzymatic Colorimetric

Reporting Name

Lp-PLA2 Activity, S

Specimen Type


Specimen Required

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 30 days
  Frozen  30 days

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross reject



Reference Values

≥18 years:

Males: ≤284 nmol/min/mL

Females: ≤228 nmol/min/mL

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

Day(s) and Time(s) Performed

Monday through Saturday; Continuously

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. 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


LOINC Code Information

Test ID Test Order Name Order LOINC Value
PLACA Lp-PLA2 Activity, S In Process


Result ID Test Result Name Result LOINC Value
PLACA Lp-PLA2 Activity, S In Process


If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen (