Test directory: Platelet Function Assay, PFA-100

Ordering Code4125
Test NamePlatelet Function Assay, PFA-100
AliasPFA
Preferred SpecimenWhole Blood
Preferred ContainerCitrate, 3.2% (Lt Blue)
Other Specimen/ContainerNone
Optimum Volume2 Tubes
Collection InstructionsSend STAT
Draw full tube
Venipuncture 21 gauge or larger needle
Use discard tube if no other tubes drawn
Draw only at QMC or QMC DLS POBs.
Handling InstructionsDo NOT centrifuge specimen
Do NOT refrigerate or freeze
Keep at room temperature.
Transport RequirementsOahu: Ambient
Do not transport by PTS.
Hand delivered only.
Specimen StabilityAmbient: 4 Hours
Refrigerated: Not Stable
Frozen: Not Stable
Rejection CriteriaAnticoagulant other than 3.2% Citrate, Clotted, Frozen,
Hemolyzed, Refrigerated, Underfilled tube, Centrifuged specimen
Avail. StatNO
Analytic Time4 Hours
MethodologyPlatelet closure time

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Collagen/EpinephrineALL80-18480-184secs
Collagen/Adenosine-5-diphosphateALL56-11856-118secs