R R

What Is a Warming Blanket?

A warming blanket is a medical blanket or warming system used to help maintain or raise a patient’s body temperature. It is commonly used before, during, or after surgery, during recovery, and in selected emergency or hospital care settings. Some warming blankets use forced warm air, while others use circulating water, electric heat, or self-warming materials. The goal is to reduce heat loss and help prevent or treat unintended hypothermia.

Link to This Resource Page

Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.

To display this...

What Is a Warming Blanket?

A warming blanket is a medical blanket or warming system used to help maintain or raise a patient’s body temperature. It is commonly used before, during, or after surgery, during recovery, and in selected emergency or hospital care settings. Some warming blankets use forced warm air, while others use circulating water, electric heat, or self-warming materials. The goal is to reduce heat loss and help prevent or treat unintended hypothermia.

read more about warming blanket ...

Copy this HTML:

Copy HTML Copied!

What Is a Warming Blanket Used For?

A warming blanket is used when a patient is cold, at risk of heat loss, or being treated in a setting where body temperature can drop. Surgical patients can lose heat because of anesthesia, exposed skin, cool rooms, and IV fluids. Warming can help reduce shivering and support safer temperature control during care. Clinicians choose the warming method based on the patient’s condition, procedure, and temperature.

Types of Warming Blankets

Forced-air warming blankets connect to a warming unit that blows warm air through a disposable or reusable blanket. Circulating-water warming systems move warmed water through a blanket or pad. Electric warming blankets use controlled electrical heat, while self-warming blankets use chemical or reflective materials. Each type has specific instructions, temperature limits, and monitoring needs.

How Is a Warming Blanket Used?

The warming blanket is placed over, under, or around the patient depending on the device type and clinical goal. Staff select the temperature setting and check the patient’s skin, comfort, and body temperature during use. Forced-air systems should be used with the correct blanket attachment, not by directing the hose onto the patient. The blanket should not cover the face or block access to monitoring, lines, or the airway.

Safety and Risks

Warming blankets can cause burns, overheating, skin irritation, or uneven warming if used incorrectly. Extra caution is needed for patients with poor circulation, reduced sensation, fragile skin, or limited ability to report discomfort. Heat should not be concentrated over medication patches unless the care team confirms it is safe. New pain, redness, blistering, dizziness, or temperature changes should be reported right away.

FAQs About Warming Blankets

Are warming blankets used during surgery?

Yes. Warming blankets are often used during surgery to help reduce heat loss linked to anesthesia, exposed skin, and cool operating rooms.

Can a warming blanket cause burns?

Yes, burns can happen if the device is misused, set too high, placed incorrectly, or used on high-risk skin. Clinical monitoring helps reduce this risk.

Is a warming blanket the same as a space blanket?

No. A medical warming blanket may actively add heat, while a space blanket mainly helps reduce heat loss by reflecting body heat and blocking wind or moisture.

Can I use a home electric blanket like a medical warming blanket?

No. Home electric blankets are not a substitute for clinical warming devices. Hospital warming requires temperature monitoring, correct equipment, and clinician oversight.

References

Hypothermia: prevention and management in adults having surgery. NICE. https://www.nice.org.uk/guidance/cg65/chapter/1-guidance. Date Accessed June 15, 2026.

Forced Air Thermal Regulating Systems. American Society of Anesthesiologists. https://www.asahq.org/advocacy-and-asapac/fda-and-washington-alerts/fda-alerts/2017/08/forced-air-thermal-regulating-systems-healthcare-provider-letter-information-about-use. Date Accessed June 15, 2026.

Forced-Air Warming and Resistive Heating Devices. Updated Perspectives on Safety and Surgical Site Infections. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC6258796/. Date Accessed June 15, 2026.

Misuse of Forced-Air Warming Devices Causes Burns. Anesthesia Patient Safety Foundation. https://www.apsf.org/article/misuse-of-forced-air-warming-devices-causes-burns/. Date Accessed June 15, 2026.

Thermal burn injury associated with a forced-air warming device. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC3337390/. Date Accessed June 15, 2026.