Platelet Drug Antibody Test

Also Known as (Alias) drug induced thrombocytopenia
Method flow cytometry
Additional Test Information Many drugs have been reported to be associated with severe thrombocytopenia. Quinine, quinidine, and heparin are the drugs most commonly associated with thrombocytopenia. An increased binding of antibody to the patient's platelets or random donor platelets in the presence of the offending drug is suggestive of drug-induced thrombocytopenia.

Accurate patient information is important to ensure that the correct drug is sent to the Platelet Immunology Laboratory for testing with the patient's plasma/platelets. It is imperative to note whether or not the patient is still on the suspected drug. A positive test result provides relevant information, while a negative test result does not exclude a drug related antibody. A false negative test result may occur for a variety of reasons (the concentration of the drug added to the test was not appropriate; it may be a metabolite of the drug rather than the native drug that has caused the thrombocytopenia.
Sample Requirements Please contact Platelet Immunology Laboratory at 206-689-6543 for sample and drug requirements
Sample Information Samples must be received Monday thru Friday morning.  Samples received after 10:00am on Friday or over the weekend will have to be re-drawn.  
Shipping Information Send whole blood at ambient temperature and should be received in the lab within 24 hours after collection

Send samples to:
Bloodworks Northwest
Attn:  Platelet Immunology Lab, Rm 619
921 Terry Avenue
Seattle, WA 98104

For additional information please see Ordering Information
Requisition Form RFT- Immunogenetics/HLA and Platelet Immunology Labs
Transaction Code 3650-00
CPT Codes 86022 x4, 86023 x4
Test Schedule Monday thru Friday morning
Turn around Time (analytic time) 1 business day
Report/Results Fax number required to receive report