PLATELET AGGREGATION send out to Vitalant 8/2023

Message

Testing has been suspended at WVU Hospitals at this time. Please contact 304-598-4230 with any questions.

*Do Not Collect tubes unless testing is scheduled with POC Lab. Call 304-598-4000 ex 7-4870. POC Lab will call Vitalant to schedule.

Vitalant test code: 5358 CPT 85576x7

Test Code

REFL

CPT Codes
85576x7

Preferred Specimen

Five (5) 3 mL Blue top tubes

Instructions

Testing must be collected in the POC lab at WVU Hospitals.
Testing must be collected within 30 minutes of Vitalant Scheduled pick up.
Samples must be received at Vitalant within 3 hours of collection.
Late arrivals will require re-schedling.

Transport Container

Ambient

Transport Temperature

Transport Temperature: Ambient

Specimen Stability

Stability: Unstable, test performed at reference lab.

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Clotted specimens,underfilled tubes, hemolyzed specimens, samples received without prior scheduling, samples sent through the pneumatic tube system.

Methodology
Platelet aggregometry with 7 agonists (3 concentrations of ADP: 20um, 10 um 5um) Collagen 2, Ristocetin 1.2mg, 0.2 mg) Arachidonic Acid

Clinical Significance

Many medications (e.g. aspirin, NSAIDs, etc.) can affect platelet function if taken 7-10 days before testing. Results may not be valid
when the patient's platelet count is < 100,000/uL. This test includes an interpretive comment prepared by pathology.
Other tests available at WVUH to assess platelet function include:
(1) PLATELET FUNCTION ASSAY
(2) VERIFYNOW P2Y12 PRU
(3) VERIFYNOW ASPIRIN TEST

Performing Laboratory
Vitalant Laboratories

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.