What is the primary use of TAC (tetracaine, adrenaline, and cocaine) in medical procedures?

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Multiple Choice

What is the primary use of TAC (tetracaine, adrenaline, and cocaine) in medical procedures?

Explanation:
TAC is used to numb the skin so that procedures involving skin puncture are painless. Tetracaine provides the local anesthetic effect, blocking nerve signals in the area. Adrenaline (epinephrine) is added to constrict the blood vessels, which helps keep the anesthetic in place longer and reduces bleeding. Cocaine’s role historically also contributes to topical anesthesia and vasoconstriction, though its use today is limited due to safety concerns. This mixture does not sterilize the skin, serve as a sedative for long procedures, or treat skin infections.

TAC is used to numb the skin so that procedures involving skin puncture are painless. Tetracaine provides the local anesthetic effect, blocking nerve signals in the area. Adrenaline (epinephrine) is added to constrict the blood vessels, which helps keep the anesthetic in place longer and reduces bleeding. Cocaine’s role historically also contributes to topical anesthesia and vasoconstriction, though its use today is limited due to safety concerns. This mixture does not sterilize the skin, serve as a sedative for long procedures, or treat skin infections.

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