Human Platelet Antigen 1 Genotype

Test Code

CPT Codes

Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube

Minimum Volume
1 mL

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: Unacceptable

DNA-Based Capture Binding Assay

Setup Schedule
Set up: Tues; Report available: 2-13 days

Reference Range
See Laboratory Report

Clinical Significance
Human Platelet Antigen (HPA) polymorphism can lead to alloimmunization that clinically can manifest as neonatal alloimmune thrombocytopenia or post-transfusion thrombocytopenia purpura. HPA-1 genotyping allows screening for potential neonatal immunization in pregnancy.

Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

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.