Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/23/2025

Ideal Temperature Range in Trauma Bay to Prevent Hypothermia

Understanding Hypothermia in Trauma

  • Hypothermia is present in up to two-thirds of patients with severe injury, and is associated with increased mortality, especially when temperature falls below 32°C, according to the American College of Surgeons 1
  • Hypothermia is classified as mild (34-36°C), moderate (32-34°C), and severe (<32°C) 3
  • The incidence of hypothermia in trauma patients is significant, with up to two-thirds of patients with severe injury being affected, as reported by the Critical Care society 1

Impact of Hypothermia on Trauma Patients

  • Hypothermia exacerbates coagulopathy and increases blood loss in trauma patients, as stated by the American College of Emergency Physicians 4
  • Hypothermia is associated with higher transfusion requirements and increases mortality (7% vs 43% mortality in normothermic vs hypothermic patients) 3, 4
  • Hypothermia forms part of the "lethal triad" along with acidosis and coagulopathy, according to the Society of Critical Care Medicine 3

Environmental Controls for Trauma Bay

  • The ideal temperature range to maintain in a trauma bay is between 36°C and 37°C to prevent hypothermia and its associated complications in trauma patients, as recommended by the American College of Surgeons 1
  • Increasing ambient temperature in the trauma bay and ensuring room temperature is sufficiently warm to minimize convective heat loss can help prevent hypothermia, as suggested by the Critical Care society 3, 4
  • Monitoring trauma bay temperature regularly as part of standard protocols is essential, according to the American College of Emergency Physicians 1

Temperature Monitoring in Trauma Patients

  • Temperature should be recorded during the exposure stage of the primary survey, and core temperature monitoring should continue every 15 minutes if temperature is above 36°C, as recommended by the Society of Critical Care Medicine 1
  • If temperature drops below 36°C, increase monitoring frequency to every 5 minutes, according to the American College of Surgeons 1

Warming Strategies Based on Temperature

  • Removing wet clothing immediately, covering with at least two warm blankets, and minimizing exposure time during examination can help prevent hypothermia in trauma patients, as stated by the Critical Care society 1, 3
  • Applying forced-air warming devices, using warming blankets and heating pads, administering warmed intravenous fluids, and providing humidified, warmed oxygen can help treat hypothermia in patients with temperature 32-36°C, according to the American College of Emergency Physicians 1, 5
  • Implementing more aggressive warming strategies, considering cavity lavage in severe cases, and evaluating need for extracorporeal warming devices in extreme cases can help treat hypothermia in patients with temperature <32°C, as suggested by the Society of Critical Care Medicine 5

Special Considerations

  • Rewarming should cease after reaching 37°C as higher temperatures are also associated with poor outcomes, according to the American College of Surgeons 1
  • Patients with traumatic brain injury may benefit from controlled hypothermia (33-35°C) only after bleeding from other sources has been controlled, as stated by the Critical Care society 6