A STUDY OF HUMIDIFICATION IN TRACHEOSTOMIZED DOGS
Open Access
- 1 August 1973
- journal article
- research article
- Published by Elsevier in British Journal of Anaesthesia
- Vol. 45 (8) , 844-848
- https://doi.org/10.1093/bja/45.8.844
Abstract
In order to determine the optimal conditions for humidification of inspired air through a tracheostomy, tracheostomized dogs were allowed to breathe humidified air, the temperature of which was deliberately varied between 15°C and 40°C. At 15°C, the air was saturated lower than 40% but was fully saturated at the other temperatures. Measurements of alveolar ventilation, functional residual capacity, lung compliance, alveolar/arterial Po2 difference, pulmonary shunt ratio, cardiac output and oxygen consumption suggest that satisfactory conditions of lung function obtained when the animals breathed fully saturated air administered at a temperature between 20°C and 30°C.Keywords
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