Abstract: A fluid impermeable envelope for covering a patient carrier or backboard to protect it from contact with body fluids. The envelope completely encloses the patient carrier and has apertures therein aligned with the handholds in the patient carrier. A second embodiment of the envelope has continuous upper and lower surfaces with bag-like projections on either side of each handhold in the patient carrier. The upper bag-like extension can be telescoped into the lower bag-like extension to form mittens continuous with the envelope surface for gripping the patient carrier. Resilient safety belt guides are also provided for attachment to opposite sides of a covered patient carrier and for providing guides for safety belts about a person on the covered patient carrier.