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Platelet Antibody Screen

Collection Restrictions

Can only be collected: Sunday – Thursday 4:00 a.m. – 1:00 p.m.
Specimens must be in the Adele Hall Transfusion Services Lab before 2:00 p.m.
Do not collect on holidays or the day before a holiday

Collection Requirements

Source: blood
Containers: BOTH are required

  • Red no gel 
  • ACD A

Volumes:

  • Red: 2 vacutainers (7 mL total volume required)
  • ACD A: minimum 7 mL in vacutainer

Turn Around Time

24-72 hours

Availability

Routine

Includes

Platelet Antibody Screen with reflex platelet crossmatch if positive

Lab Processing Instructions

Specimen: whole blood
Room temperature

Performing Laboratory

Community Blood Center

Adele Hall Lab Section

Sendouts

Additional Information

This test is designed to look for antibodies in serum to both HLA antigens and to platelet specific antigens. This is the best test to order for a patient who has had many platelet transfusions and has developed refractoriness to platelet transfusions. This is also the test to use to investigate post-transfusion purpura.

Reference Ranges

See report for ranges

CPT

86022