Which general anesthetic agent is administered exclusively via the intravenous route ?
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Answer: A. Propofol
Explanation
Propofol is an intravenous general anesthetic characterized by rapid onset and short duration. Its poor water solubility requires formulation in an oil-in-water emulsion for injection. It is administered strictly via the intravenous route to induce and maintain general anesthesia. General anesthetics produce reversible loss of consciousness and adequate surgical anesthesia. Intravenous induction agents cross the blood-brain barrier rapidly due to high lipophilicity. Continuous infusions allow precise control of anesthetic depth during surgical procedures.
Operating rooms rely heavily on propofol for routine surgical anesthesia inductions. Intensive care units also utilize propofol infusions for short-term mechanical ventilation sedation. Anesthesiologists monitor hemodynamic parameters closely during intravenous anesthetic administration. Sevoflurane is a volatile inhalation anesthetic administered via specialized breathing circuits. Naloxone is an opioid receptor antagonist administered to reverse narcotic overdose depression. Flumazenil is a benzodiazepine antagonist used to reverse sedative-hypnotic drug overdoses.
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