Platelet Antibodies, Indirect (IgG, IgM, IgA)

Test Code

CPT Codes
86022 (x3)

Preferred Specimen
2 mL serum

Minimum Volume
1 mL

Collect 5 mL whole blood in a serum separator tube (red-top), and separate serum before submitting.

Transport Container
Plastic screw-cap vial

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 21 days
Frozen: Unacceptable

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

Flow Cytometry (FC)

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Tues, Sat; Report available: 3-6 days

Reference Range
Platelet Ab, Indirect (IgG) Negative
Platelet Ab, Indirect (IgM) Negative
Platelet Ab, Indirect (IgA) Negative

Clinical Significance
The identification of circulating platelet antibodies is useful in order to identify immune-mediated platelet destruction. Disorders associated with immune platelet destruction include isoimmune neonatal thrombocytopenia, drug induced thrombocytopenia, drug sensitivities, allergies and post transfusion purpura. The destruction is either autoimmune, where a malfunction in the immune response results in the production of antibodies directed against 'self' platelet specific antigens; or else platelet destruction occurs when the patient received platelet-specific antibodies from an outside source such as a non-compatible blood transfusion or maternal transfer across the placental barrier. In either of the above situations, the detection of platelet antibodies is useful in order to determine if an immune basis is responsible for the thrombocytopenia observed clinically.

Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano
33608 Ortega Highway
San Juan Capistrano, CA 92675

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.