Proficiency Testing/EQA / 2024 Surveys / Microbiology / Bacteriology Help Please log in to determine if you are eligible to purchase PT Programs. CRE - CRE 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 Resistance mechanism detection 3 Two shipments per year Program Information Three swab specimens Designed for molecular and phenotypic testing methods Challenge isolates may include Enterobacterales, Pseudomonas, or Acinetobacter. Shipping Schedule Shipment A: May 20 Shipment B: October 21 Guest Log in/Register