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Drug-Dependent Platelet Antibodies

Drug-Dependent Platelet Antibody (IgG/IgM)

Test Codes

Blood Center of Wisconsin: BCW9000, Order as a Miscellaneous Send Out.

Department

Send Outs

Instructions

The drug to be tested must be included in the order.

Specimen Collection Criteria

Collect: Two plain Red-top tubes.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 5.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL)

Rejection Criteria

Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 5.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): Greater than 60 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Blood Center of Southeastern Wisconsin, Milwaukee, WI.

Performed

Various, three times per week.
Results are available in 3-4 days.

Reference Range

None detected.

Test Methodology

Flow Cytometry.

Clinical Utility

This assay is used to determine if a low platelet count is due to a drug that the patient is taking.

CPT Codes

86022, per drug.

Contacts

Last Updated

9/12/2023