Cardiolipin Antibody (IgA)

Test Code
4661

CPT Codes
86147

Preferred Specimen
1 mL plasma collected in a 3.2% sodium citrate (light blue-top) tube

Minimum Volume
0.5 mL

Other Acceptable Specimens
Serum

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic

Methodology
Immunoassay (IA)

Setup Schedule
Set up: Tues-Sat; Report available: Next day

Reference Range
Cardiolipin Antibody IgA
≤11 APL Negative
12-20 APL Indeterminate
21-80 APL Low to medium positive
>80 APL High positive


Clinical Significance

Cardiolipin antibodies (CA) are seen in a subgroup of patients with autoimmune disorders, particularly Systemic Lupus Erythematosus (SLE), who are at risk for vascular thrombosis, thrombocytopenia, cerebral infarct and/or recurrent spontaneous abortion. Elevations of CA associated with increased risk have also been seen in idiopathic thrombocytopenic purpura, rheumatoid and psoriatic arthritis, and primary Sjögren's syndrome.



Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153




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.