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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Post Transfusion Purpura


CPT Code(s): 81400x8, 86022

Test Description: Test Component:

Platelet Antibody Identificaion Panel

Platelet Antigen Genotyping Panel

Testing Site: Testing will be sent to an approved reference laboratory.

Turnaround Time: Routine: Approximately 2 weeks.

Specimen Requirements

Specimen: Blood

Collection Instructions: Collect 10 mL EDTA whole blood and 2- 9 mL red top tubes. For pediatric patients, collect 5 mL EDTA whole blood and 1- 9 mL red top.

Collection Container: Preferred: See collection instructions.

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.

Stability: Ambient: Not acceptable
Refrigerated: 7 days


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