Help Please log in to determine if you are eligible to purchase PT Programs. PNEUMOCYSTIS, GMS STAIN - PCP4 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 PCP – GMS stain 3 Two shipments per year Program Information Three images, each available as photographs and online images for Pneumocystis jirovecii. Shipping Schedule Shipment A: June 1 Shipment B: December 7 Guest Log in/Register Customers Who Bought This Item Also Bought PARASITOLOGY BENCHTOP REFERENCE GUIDE VIEW DETAILS >