Lipoprotein (a)

Test Code

LAB563

Quest Code

34604

Alias/See Also

LIPOA; LIPPA

CPT Codes
83695

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top), EDTA (royal blue-top), lithium heparin or sodium heparin (green-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly lipemic • Grossly icteric

Methodology
Immunoturbidimetric

Setup Schedule

Night Sets up 3 days a week.

Reference Range

<75 nmol/L

Risk	nmol/L
Optimal	<75
Moderate	75-125
High	>125

Cardiovascular event risk category cut points (optimal, moderate, high) are based on Tsimikas S. JACC 2017;69:692-711.

Clinical Significance

Elevated concentrations of Lp(a) are associated with increased risk of coronary artery disease.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

Additional Information
LMRP_L36358_Cardiovascular_Risk_Assessment_Testing

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.