Platelet Function Screen (PFA, PFA-100)

Light Blue Top Tube

Tube Type (x2)

Test ID LAB318
CPT Code(s) 85576
Group/Individual Test Group
Laboratory Core Laboratory
Tube Station 30 Routine: 888 STAT
Specimen Routine: 2.7 mL Light Blue Top Tube x 2; See Important Comments
Unspun: Whole blood
Room temperature: 3 hours
Refrigerator: NO
Frozen: NO
Availability Routine: 24 hours/day, 7 days/week
Turnaround Time STAT 1 hr, Routine 2 hrs
Reference Range COL/EPI 84-178 seconds
COL/ADP 60-130 seconds
Comments Cannot be added on to existing Coag test in lab - requires individual tube. Recommend 2 tubes due to volume required for testing.
Do NOT refrigerate; Do not centrifuge. Draw tube must be allowed to fill completely. Short draws will be rejected.

Reviewed by Christopher Parker on November 15, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514