Help Please log in to determine if you are eligible to purchase PT Programs. DRUG-SPECIFIC PLT AGGREGATION, DBL VOL - PIAX Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS). Procedure Challenges per Shipment Number of Shipments Aspirin assay 3 Two shipments per year PRU test 3 Program Information All Survey PIA specimens in duplicate For use with the Accumetrics VerifyNow® System Kit includes sufficient material to perform one assay/procedure. Other assay/procedure reporting requires the purchase of additional kits. Shipping Schedule Shipment A: April 14 Shipment B: October 19 Guest Log in/Register