Midazolam for IV Sedation — MFDS Part 1 MCQ

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EasyPharmacologyMidazolam for IV SedationMFDS Part 1

In UK dental practice, which benzodiazepine is most commonly used as a single agent, titrated intravenously, for conscious sedation?

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Correct answer: C — Midazolam

Midazolam is the correct answer. Titrated intravenous midazolam is the benzodiazepine technique most commonly used for conscious sedation in UK dental practice. It has a rapid onset—approximately 2 minutes after intravenous administration—and produces dose-related anterograde amnesia. It must be administered slowly and titrated to the individual response rather than given as a rapid bolus. Diazepam has a longer duration and is not the standard contemporary agent for routine IV dental sedation. Lorazepam is also longer acting, while temazepam and nitrazepam are not routinely used intravenously for dental conscious sedation. The original key was correct, but the unsupported fixed duration estimate and non-UK textbook reference required replacement.

Reference: NHS England, Clinical standards for dental anxiety management, section 3.1 Conscious sedation, updated 2024. https://www.england.nhs.uk/long-read/clinical-guide-for-dental-anxiety-management/