PDI Alcohol Prep Pads and SwabSticks Use for topical skin cleansing prior to injection, venipuncture, or electrode use (ensures maximum adhesion and conductivity). Each SwabStick is saturated with 70% isopropyl alcohol and 10% acetone. Use for defatting of skin as needed. Manufactured according to FDA regulations, meet the highest bacteriological standards. Each packette contains one SwabStick.