Aspirin Resistance Test

Message

Coagulation

Test Code

APFT

Alias/See Also

Aspirin Platelet Function Test

Preferred Specimen

Two 2.7 mL Blue tube and Plain Red 6.0 mL

Other Acceptable Specimens

None

Instructions

NOTE: Test is available at BDMC and BUMCP (specimen cannot be transported from other sites). Using a 21 gauge needle or larger (i.e. 20 gauge) first collect a discard tube (plain red top tube) with at least 2 mL of blood. Next, using the 2 mL Greiner (special blue tubes), partial-fill vacuette tubes to the black line (1/2 filled). Gently invert at least 5 times. Hand deliver all 3 tubes to the lab within one hour of collection. DO NOT send through the telelift system.

Setup Schedule

To obtain information on expected turn around time for a site:
- Go to Laboratories - Hospital Specific Information /BHSystem/Teams+and+Projects/Laboratories/Hospital+Specific+Information/
- Select Site then
- Select Turn Around Time Exp

Clinical Significance

Test results are reported in Aspirin Reaction Units (ARU).
•350 - 549 ARU - Platelet dysfunction detected secondary to therapeutic effect of aspirin.
•550 - 700 ARU - Platelet dysfunction not detected.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.