a barrier kit for emergency medical technician sterile patient monitoring equipment provides an emergency medical technician a variety of sanitary cover barriers to provide adherence to a cleaning regimen , while avoiding patient to patient cross contamination . the sterile kit is contained in a single envelope including a set of sanitary barriers or sheaths of the same material mounted on a cardboard substrate for a stethoscope , a pulse oximeter probe , a necktie protector and an arm wrap cover to prevent a blood pressure monitor cuff from contacting the patient skin with an attached cover for protection against splatter of bodily fluids from one patient to an emt technician or from one patient to another patient .