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Test Code
LPLA2
Test Name
Lp-PLA2, Lipoprotein-Associated Phospholipase
CPT Codes
83698
Expected Turnaround Time
2 - 4 days
Clinical Utility

The PLAC® test for Lp-PLA2 Activity is an enzyme assay for the in vitro quantitative determination of Lp-PLA2 (lipoprotein-associated phospholipase A2) activity in EDTA plasma and serum. Lp-PLA2 activity is to be used in conjunction with clinical evaluation and patient risk assessment as an aid in predicting risk of coronary heart disease (CHD) in patients with no prior history of cardiovascular events.
Specimen and Container Info

Preferred Specimen Type: Serum

Alternate Specimen type: Plasma

Preferred Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain or Lavender Top (EDTA)

Desired Specimen Volume: 0.5 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells as soon as possible (within two hours).
  2. Transfer 0.5 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

24 hours

Refrigerated

14 days

Frozen

18 months
Causes for Rejection
  • Hemolyzed samples
  • Excessive turbidity
  • Clots in samples
Methodology
Quantitative Enzymatic/Spectrophotometry
Reference Intervals

See patient report.
Alternate Names
  • PLAC®
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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