Felix N R Wood, Jason Hicks, Rhiannon Wilkinson, Rosemary Hartley, Jonathon Lowe
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引用次数: 0
Abstract
In very cold environments, it may be burdensome or impossible for the polar medic to prevent medicines from freezing. We sought to investigate whether orientation affected the risk that glass ampoules of 1 in 1000 adrenaline, an important emergency drug, would break during freezing and subsequent thawing. Ampoules of adrenaline were orientated either upright, horizontally or inverted. They were exposed to freezing temperatures (-25°C or -80°C) and then allowed to thaw. A crossover design was used whereby the orientation of unbroken ampoules was changed for the next trial. No ampoules broke when frozen at -25°C and then thawed. When this was repeated at -80°C, ampoules reliably broke unless they were upright with no liquid in the top part of the ampoule. Upright orientation prevents the breakage of glass ampoules of 1 in 1000 adrenaline rapidly frozen at -80°C. The polar medic may consider storing ampoules upright if they are to be exposed to very low temperatures.
期刊介绍:
The International Journal of Circumpolar Health is published by Taylor & Francis on behalf of the Circumpolar Health Research Network [CircHNet]. The journal follows the tradition initiated by its predecessor, Arctic Medical Research. The journal specializes in circumpolar health. It provides a forum for many disciplines, including the biomedical sciences, social sciences, and humanities as they relate to human health in high latitude environments. The journal has a particular interest in the health of indigenous peoples. It is a vehicle for dissemination and exchange of knowledge among researchers, policy makers, practitioners, and those they serve.
International Journal of Circumpolar Health welcomes Original Research Articles, Review Articles, Short Communications, Book Reviews, Dissertation Summaries, History and Biography, Clinical Case Reports, Public Health Practice, Conference and Workshop Reports, and Letters to the Editor.