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Platelet Antigen Genotyping - HPA-4

Order Code: 5521

Also Known as

Pen a/b Platelet Antigen Genotyping

Disease State

Test Information

Single alloantigen typing for HPA-4

Sample Requirements

Fetal: Amniotic Fluid, CVS, Cultured Amniocytes or Cultured CVS; Parental/Patient: EDTA Whole Blood (lavender top)

Shipping Information

Room Temperature

Requested Volume

Fetal: 7-15 ml Amniotic Fluid or 5-10 mg CVS, backup culture of Amniocytes or CVS is highly recommended; Two T25 flasks Cultured Amniocytes or CVS (2x10^6 minimum); Parental/Patient: 3-5 ml EDTA whole blood

Minimum/Pediatric Volume

Fetal: Call Laboratory; Parental/Patient: 2 ml EDTA whole blood

CPT Codes



PCR and Fluorescent Hydrolysis Probes

Turnaround Time

7 days

Test Schedule

Performed at least 3 times per week.

New York State Approval



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