Supports patient care delivery by helping health care providers during examinations; preparing laboratory specimens; performing basic laboratory tests on the premises; disposing of contaminated supplies; sterilizing medical instruments; drawing blood; preparing patients for x-rays; taking electrocardiograms; removing sutures; changing dressings. Prepares patients for the health care visit by directing and/or accompanying them to the examining room; providing examination gowns and drapes; helping them to position themselves for the examination and/or treatment; arranging examining room instruments, supplies, and equipment.