 Maintaining the patient in the perioperative normothermia is a challenge for surgical and nursing staff. Despite advances in the development of new technologies for the prevention of perioperative hypothermia, this event still happens in the operating room of the health services To prevent patients body temperature loss, passive and active cutaneous warming methods can be used. Passive methods prevent loss of body heat through the heat transfer block, as blankets, clothes and cotton sheets; however, there is evidence to show that although assist in maintaining body temperature, passive methods alone are not effective. 