A simple improvised prehospital method to warm intravenous fluid
Abstract Study Objective Use of warmed intravenous fluid by emergency medical services (EMS) for prehospital injured patients is recommended to avoid iatrogenic hypothermia. We hypothesized that an improvised heating method would significantly increase the temperature of an intravenous fluid bag in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-10-01
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| Series: | Journal of the American College of Emergency Physicians Open |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/emp2.12536 |
| _version_ | 1827956291931209728 |
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| author | John W. Lyng Michael C. Perlmutter Michaela A. West |
| author_facet | John W. Lyng Michael C. Perlmutter Michaela A. West |
| author_sort | John W. Lyng |
| collection | DOAJ |
| description | Abstract Study Objective Use of warmed intravenous fluid by emergency medical services (EMS) for prehospital injured patients is recommended to avoid iatrogenic hypothermia. We hypothesized that an improvised heating method would significantly increase the temperature of an intravenous fluid bag in a simulated prehospital environment. Methods The change from baseline in the temperature of a 1‐L intravenous fluid bag positioned above the vehicle windshield defroster vent was measured for 30 minutes using a thermocouple probe. Temperature changes were compared with a control fluid bag positioned on the vehicle console armrest. A total of 10 independent experiments were performed. Results The defroster vent method increased intravenous fluid bag temperature from a mean starting temperature of 19.4°C (95% confidence interval [CI], 17.4°C–21.4°C) to a mean end temperature of 32.6°C (95% CI, 30.6°C–34.6°C) after 30 minutes. The temperature of a control intravenous fluid bag (mean starting temperature of 20.1°C; 95% CI, 19.0°C–21.2°C) exposed to a warmed (mean 33.2°C) passenger compartment changed little during the same time period (mean end temperature of 22.3°C; 95% CI, 19.4°C–25.2°C). Conclusions Convective warming of an intravenous fluid bag using the dashboard defroster vent significantly raised the fluid temperature. Such a method should be readily available to EMS or first responders. |
| first_indexed | 2024-04-09T15:01:02Z |
| format | Article |
| id | doaj.art-a8d7a2c6f9be4058bfba81e2af0b801f |
| institution | Directory Open Access Journal |
| issn | 2688-1152 |
| language | English |
| last_indexed | 2024-04-09T15:01:02Z |
| publishDate | 2021-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of the American College of Emergency Physicians Open |
| spelling | doaj.art-a8d7a2c6f9be4058bfba81e2af0b801f2023-05-01T17:35:54ZengWileyJournal of the American College of Emergency Physicians Open2688-11522021-10-0125n/an/a10.1002/emp2.12536A simple improvised prehospital method to warm intravenous fluidJohn W. Lyng0Michael C. Perlmutter1Michaela A. West2Department Emergency Medicine University of Minnesota School of Medicine Minneapolis Minnesota USAUniversity of Minnesota School of Medicine Minneapolis Minnesota USANorth Memorial Health Division of Trauma Emergency Surgery and Critical Care Robbinsdale Minnesota USAAbstract Study Objective Use of warmed intravenous fluid by emergency medical services (EMS) for prehospital injured patients is recommended to avoid iatrogenic hypothermia. We hypothesized that an improvised heating method would significantly increase the temperature of an intravenous fluid bag in a simulated prehospital environment. Methods The change from baseline in the temperature of a 1‐L intravenous fluid bag positioned above the vehicle windshield defroster vent was measured for 30 minutes using a thermocouple probe. Temperature changes were compared with a control fluid bag positioned on the vehicle console armrest. A total of 10 independent experiments were performed. Results The defroster vent method increased intravenous fluid bag temperature from a mean starting temperature of 19.4°C (95% confidence interval [CI], 17.4°C–21.4°C) to a mean end temperature of 32.6°C (95% CI, 30.6°C–34.6°C) after 30 minutes. The temperature of a control intravenous fluid bag (mean starting temperature of 20.1°C; 95% CI, 19.0°C–21.2°C) exposed to a warmed (mean 33.2°C) passenger compartment changed little during the same time period (mean end temperature of 22.3°C; 95% CI, 19.4°C–25.2°C). Conclusions Convective warming of an intravenous fluid bag using the dashboard defroster vent significantly raised the fluid temperature. Such a method should be readily available to EMS or first responders.https://doi.org/10.1002/emp2.12536emergency medical serviceshypothermiatraumaresuscitationprehospitalaustere environments |
| spellingShingle | John W. Lyng Michael C. Perlmutter Michaela A. West A simple improvised prehospital method to warm intravenous fluid Journal of the American College of Emergency Physicians Open emergency medical services hypothermia trauma resuscitation prehospital austere environments |
| title | A simple improvised prehospital method to warm intravenous fluid |
| title_full | A simple improvised prehospital method to warm intravenous fluid |
| title_fullStr | A simple improvised prehospital method to warm intravenous fluid |
| title_full_unstemmed | A simple improvised prehospital method to warm intravenous fluid |
| title_short | A simple improvised prehospital method to warm intravenous fluid |
| title_sort | simple improvised prehospital method to warm intravenous fluid |
| topic | emergency medical services hypothermia trauma resuscitation prehospital austere environments |
| url | https://doi.org/10.1002/emp2.12536 |
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