Application Home Training Training Modules Application The PharmChek® Sweat Patch Application Module will cover.... Materials neededChain of Custody completionBody placementSkin preparationApplying the PharmChek® Sweat Patch/VIDEOApplying the PharmChek® Sweat Patch Overlay/VIDEO Next Previous Application Materials Learn More Chain of Custody - Application Learn More Application - Body Placement Learn More Skin Preparation / VIDEO Learn More Application / VIDEO Learn More Overlay Application / VIDEO Learn More