Proficiency Testing/EQA / Microbiology / Bacteriology Help Please log in to determine if you are eligible to purchase PT Programs. MRSA SCREEN, MOLECULAR, 2 CHALLENGE - MRS2M 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 MRSA/MSSA/SA detection 2 Two shipments per year Program Information Two swab specimens (in duplicate) For use with molecular methods that detect mecA Shipping Schedule Shipment A: March 27 Shipment B: October 30 Guest Log in/Register Customers Who Bought This Item Also Bought METHICILLIN RESISTANT S AUREUS, 5 CHAL VIEW DETAILS >