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Lab Test Dictionary

Crossmatch Platelets

Specimen Type

Whole Blood

Performing Lab

San Diego Blood Bank

Epic ID

Other Reference Test

Lab Test Days

Mon-Fri 0600-2200

Standard TAT

24 Hours

Stat TAT


Collection Information

Specimen Required

10 mL Whole Blood

Container Type

Lavender (EDTA)

Collection Instructions

Must call RCHSD Blood Bank BEFORE placing the order. Patient must have a 1 hour post transfusion platelet count completed after 2 consecutive transfusions with ABO identical platelets and a post transfusion platelet count increment of <10,000/µL.

Processing Information - Lab Use Only

Specimen Stability

14 Days

Rejection Criteria

Gross hemolysis, inadequate specimen

Test Volume Required

10 mL Whole Blood

Minimum Test Volume

3 mL Whole Blood

Processing Instructions

Give specimen(s) to blood bank for pick up from SDBB courier.


Must know the amount/volume of platelets to transfuse per day. Only ABO compatible platelets may be crossmatched which may limit the number of units available for testing and may result in the need for a Waiver from Standard Protocol be signed by the ordering physician for ABO incompatible bone marrow and stem cell transplant patients requiring a specific blood type. The plateletpheresis unit(s) will be shipped to RCHSD Blood Bank only after all testing, including required donation testing, is

CPT Codes