Platelet Antibodies, Indirect (IgG, IgM) : 91744

Test Code
PLTGMQ or 91744

Alias/See Also
Circulating Platelet Antibody, Serum Platelet Antibody

CPT Codes

Serum separator tube or plain red tube.

Transport Container
Centrifuge serum separator tube and transport. If plain red, centrifuge and aliquot 2 mL serum (Min: 1 mL) into a standard transport tube.

Transport Temperature

Specimen Stability
Ambient: Unacceptable; Refrigerated: 21 days; Frozen: Unacceptable

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

Flow Cytometry (FC)

Setup Schedule
Tuesday & Thursday

Report Available
2-5 days (From receipt at performing laboratory)

This test was developed and its performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. Performance characteristics refer to the analytical performance of the test.

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

Clinical Significance
Circulating antibodies to platelets have been associated with immune and drug-induced thrombocytopenia. Elevated levels of platelet - associated antibodies may occur in autoimmune thrombocytopenia, as well as thrombocytopenia associated with carcinoma, AIDS, and connective tissue diseases. Both circulating and associated platelet antibodies may play a role in platelet destruction. Platelet antibodies may consist of a single isotype or any combination of isotypes.

Performing Laboratory
Quest Diagnostics

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.