second gas effect


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sec·ond gas ef·fect

when a constant concentration of an anesthetic such as halothane is inspired, the increase in alveolar concentration is accelerated by concomitant administration of nitrous oxide, because alveolar uptake of the latter creates a potential subatmospheric intrapulmonary pressure that leads to increased tracheal inflow.

sec·ond gas effect

(sekŏnd gas ĕ-fekt)
When a constant concentration of an anesthetic such as halothane is inspired, increase in alveolar concentration is accelerated by concomitant administration of nitrous oxide, because alveolar uptake of latter creates a potential subatmospheric intrapulmonary pressure that leads to increased tracheal inflow.
References in periodicals archive ?
2]O uptake alone does not explain the second gas effect of [N.
Magnitude of the second gas effect on arterial sevoflurane partial pressure.
Influence of the concentration effect on the uptake of anesthetic mixtures: the second gas effect.
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