Platelet Function Screen

Test Includes

Closure Time COL/EPI

Container Whole Blood Required

Sodium Citrate Blue Top

Critical Value

N/A

Summary Test Name

Platelet Function Screen

Specimen Stability

4 hours

Minimum Volume

2 4.5ml blue top tubes

Specimen Transport

Room Temp (Do NOT refrigerate)

Specimen Preparation In House

DO NOT CENTRIFUGE. Call Special Hematology at 8559 to pickup specimen.

Stat Availability

N/A

Test Turnaround Time Routines And Stats

4 hours

Patient Preparation

Platelet Count should be between 150,000 and 500,000/ul.   Hematocrit should be between 35% and 50%.  

Reference Value

Collagen/Epinephrine: 90 to 194 seconds
Collagen/ADP: 69 to 124 seconds 

Additional Test Information

This test is useful for aiding in the identification of platelet dysfunction in citrated human whole blood.