Humidification and Filtration
Autor: | Benjamin M. Hyers, James B. Eisenkraft, Craig Spencer |
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Rok vydání: | 2021 |
Předmět: | |
DOI: | 10.1016/b978-0-323-67279-5.00007-8 |
Popis: | Normally, the upper airway adds heat and moisture to inspired air. When dry medical gases bypass the upper airway via an endotracheal tube, the normal heat and moisture exchange function is compromised. This function may be replaced in two ways. First, heat and humidity can be actively added with a heated humidifier; second, and more commonly, heat and moisture may be passively retained using a heat and moisture exchanger (HME).The upper airway also filters and expels particles, including bacteria and viruses, from inspired gas. The anesthesiologist is responsible for minimizing the risk of infection from inhaled microorganisms. The use of HME filters (HMEFs) protects patients from inhaled microorganisms and also protects the anesthesia breathing system from the patient. |
Databáze: | OpenAIRE |
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