For a patient undergoing IV conscious sedation, which combination of drugs is most appropriate?

Correct answer: A. Midazolam and fentanyl

• A. Correct. Midazolam (benzodiazepine) combined with fentanyl (opioid analgesic) is the classic combination for IV conscious sedation in dentistry — providing anxiolysis, amnesia, and analgesia while maintaining a protective airway reflex.
• B. Nitrous oxide and halothane describe inhalational general anesthesia, not IV conscious sedation.
• C. Fentanyl alone with propofol is general anesthesia, not conscious sedation.
• D. Ketamine produces dissociative anesthesia and is not standard for dental IV conscious sedation.