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Journal of Trauma and Injury 2014;27(2):20-24.
The Thermal Insulation of Warm Fluid using Aluminium Foil in Trauma Care
Seo Jin Kim, Kyung Hoon Sun, Yong Jin Park, Sun Pyo Kim
Department of Emergency Medicine, School of Medicine, Chosun University, Gwangju, Korea. chosunem@naver.com
외상환자 수액 투여에서 알루미늄 호일을 이용한 단열 효과
김서진, 선경훈, 박용진, 김선표
조선대학교 의학전문대학원 응급의학교실
Received: 16 January 2014   • Revised: 11 April 2014   • Accepted: 10 June 2014
The temperature of a warm fluid infused into a patient is lowered because the line that allows the fluid to be infused into the patient is exposed to room air. This study evaluated the effects of aluminum foil used as an insulator surrounding the fluid infusion lines when using warm crystalloid fluids to treat traumatic shock patients.
The study measured the differences in fluid temperature between infusion lines with and without the aluminum-foil insulation. We used 1L of normal saline at 40degrees C as the infusion fluid, and the fluid infusion line was 200 cm long. The differences in temperature were measured for various fluid flow rates from 12,000 mL/min to 100 mL/min. We performed three experiments at each flow rate.
The results showed the differences in temperature between the groups with and without the aluminum insulation were significant for flow rates above 100 mL/min.
Hypothermia in trauma patients results in many adverse complications such as peripheral vascular constriction, tissue hypoxia, metabolic acidosis, heart dysfunction and so on. Thus, the use of warm fluids and blood components is essential to reduce the probability of hypothermia. This study showed the aluminum foil wrapped around the infusion line had an insulator effect. As a result, such a wrapping can be used to avoid the adverse effects of hypothermia.
Key Words: Hypothermia; Prevention; Insulator; Trauma care
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