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Duran us receiving stitches for a wound from a car accident. The doctor gives him the local anesthetic tetracaine. Which describes how tetracaine will work in Duran's body?

a. The sodium channels in his nerves will be blocked.
b. The epidural space in his spine will prevent sensation.
c. His nervous system will be shut down.
d. His nerves will send the sensation more slowly.

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henoalshobaki

Answer:

a. The sodium channels in his nerves will be blocked.

Explanation:

Tetracaine is an ester-type anesthetic and produces local anesthesia by blocking the sodium ion channels involved in initiation and conduction of neuronal impulses. Tetracaine is rapidly hydrolyzed in the plasma; therefore, volume of distribution could not be determined

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