Which anesthetic is listed for use in an excision tray setup?

• A. Epinephrine
• B. Propofol
• C. Lidocaine
• D. Nitrous oxide

Answer: (C)

For a minor excision, the goal is to numb the specific area with a local anesthetic so the patient feels no pain during the procedure. Lidocaine fits this role perfectly because it blocks nerve signals in the treated tissue, producing targeted numbness without affecting consciousness. It’s quick to take effect—typically within a few minutes—and its duration can be extended if epinephrine is added, which also helps reduce bleeding in the area.

Epinephrine itself isn’t an anesthetic; it’s a vasoconstrictor used alongside lidocaine to prolong numbness and minimize bleeding. Propofol is a general anesthetic used for deeper sedation or unconsciousness, not for local numbness. Nitrous oxide is an inhaled analgesic used for pain relief but does not provide the local anesthesia needed for an excision. So lidocaine is the appropriate choice for this setting.