Which gas is delivered via a temperature-controlled vapouriser due to its special properties?

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Multiple Choice

Which gas is delivered via a temperature-controlled vapouriser due to its special properties?

Explanation:
Desflurane has an exceptionally low boiling point and a very high vapor pressure at room temperature, so the amount that becomes vapor depends strongly on temperature. To deliver a precise, predictable concentration, it must pass through a heated, temperature-controlled vapouriser. If not heated, the vaporiser would over- or under-deliver as ambient temperature changes, risking unstable anesthesia. Other volatile agents have higher boiling points and can be reliably vaporised with standard vapourisers without heating. Therefore, this gas requires a temperature-controlled vapouriser because of its special properties.

Desflurane has an exceptionally low boiling point and a very high vapor pressure at room temperature, so the amount that becomes vapor depends strongly on temperature. To deliver a precise, predictable concentration, it must pass through a heated, temperature-controlled vapouriser. If not heated, the vaporiser would over- or under-deliver as ambient temperature changes, risking unstable anesthesia. Other volatile agents have higher boiling points and can be reliably vaporised with standard vapourisers without heating. Therefore, this gas requires a temperature-controlled vapouriser because of its special properties.

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