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Surgery General 9643d143

Arrange the following long acting LA in descending order of their duration of action.

A

Dibucaine>Etidocaine>Tetracaine> Bupivacaine.

B

Dibucaine>Tetracaine>Bupivacaine> Etidocaine.

C

Tetracaine>Dibucaine>Bupivacaine>Etidocaine.

D

Tetracaine>Bupivacaine>Dibucaine> Etidocaine.

High-Yield Explanation

Dibucaine is longest acting and most toxic. Etidocaine: 200minutes. Tetracaine~Bupivacaine:175 minutes.

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