Local anesthetics work by

1. enhancing the influx of calcium into the cell.
2. occupying potassium receptors.
3. increasing nerve impulse transmission.
4. blocking sodium channels.


4
Rationale 1: Enhancing calcium into the cell is not the mechanism of action for local anesthetics.
Rationale 2: Occupying potassium receptors is not the mechanism of action for local anesthetics.
Rationale 3: Local anesthetics block sodium channels, resulting in diminished motor and sensory impulse transmission. Increasing nerve impulse transmission is not the mechanism of action for local anesthetics.
Rationale 4: Local anesthetics block sodium channels, resulting in diminished motor and sensory impulse transmission.
Global Rationale: Local anesthetics block sodium channels, resulting in diminished motor and sensory impulse transmission. Enhancing calcium into the cell, occupying potassium receptors, and increasing nerve impulse transmission are not the mechanism of action for local anesthetics.

Nursing

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