Published on March 10, 2022

Platelet Response, Aspirin

Special, see Specimen Section

Test ID LAB2006
CPT Code(s) 85576
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Not Applicable - Specimens must be hand delivered to the Core Laboratory.
Any specimens sent through the tube station will be canceled.
Specimen Routine: Whole blood in Red Top Tube
AND Whole blood in Special Collection Tube (sodium citrate);
Obtain special collection tube from Core Laboratory (984)974-2361.
Stability Unspun, Room Temperature: 4 hours
Refrigerated or Frozen: Not Acceptable
Availability Routine: 24 hrs/7 Days
Turnaround Time 2 hrs
Reference Range Normal: Not applicable. See Interpretation.
Interpretation: <550 ARU = Drug Effect
≥550 ARU = No Drug Effect
  • Call Core Laboratory (984)974-2361 for collection tubes.
  • Draw and label all tubes
  • Walk specimens immediately to the core laboratory.
  • Do NOT send through the tube station.
  • Do NOT Centrifuge, Refrigerate, or Freeze specimens.

Reviewed by Christopher Parker on March 08, 2022

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