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Test Code
LPPA
Test Name
Lipoprotein (a)
CPT Codes
83695
Expected Turnaround Time
2 - 4 days
Clinical Utility
Refine risk assessment of atherosclerotic cardiovascular disease (ASCVD) and guide decisions on lipid-lowering therapy.
Specimen and Container Info

Preferred Specimen Type: Serum

Alternate Specimen Type: Plasma

Preferred Collection Container: Red Top, Plain

Alternate Collection Container: Gold Top, Serum Separator, Lavender Top (EDTA) or Green Top (Lithium or Sodium Heparin)

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a red top, plain tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions
Transport to the laboratory refrigerated.
Stability Requirements

Room Temperature

7 days

Refrigerated

14 days

Frozen

90 days
Causes for Rejection
  • Gross hemolysis
  • Grossly lipemic
  • Grossly icteric
Methodology
Quantitative Immunoturbidimetry
Reference Intervals
See patient report.
Limitations
Lp(a) levels may be increased in patients with acute phase reactions, such as infection, surgery, and tumor.
Alternate Names
  • Lp "Little a"
  • Lp (a)
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, daily
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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