NCCAA Re-certification 2025 – 400 Free Practice Questions to Pass the Exam

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What is the vapor pressure of Sevoflurane?

170 mmHg

The vapor pressure of Sevoflurane is approximately 170 mmHg at 20 degrees Celsius. This value is significant in clinical settings as it relates to the anesthetic's volatility and the concentration of the gas that can be achieved in a closed system. Vapor pressure indicates how readily a substance can evaporate into a gas, which is crucial for the anesthetic's use in medical procedures.

Anesthetics such as Sevoflurane need to have a suitable vapor pressure to ensure that, during general anesthesia, there can be effective delivery of the drug in its gaseous form. Sevoflurane's relatively low vapor pressure compared to other agents, such as halothane, allows it to be delivered safely while maintaining adequate control over the depth of anesthesia. This is why understanding the correct vapor pressure is essential for medical professionals administering anesthesia.

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240 mmHg

669 mmHg

100 mmHg

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