Question

1. which type of pain management intervention inhibits the pain sensation by preventing excitation of nerve endings and prevents sodium influx into the cell?

a. local anesthetics
b. opioids
c. nsaids
d. tylenol

Explanation:

To solve this, we analyze each option:

• Option A (Local anesthetics): Local anesthetics work by blocking sodium channels, which prevents nerve endings from being excited and sodium from entering cells, thus inhibiting pain sensation. This matches the description.
• Option B (Opioids): Opioids act on opioid receptors in the central nervous system to reduce pain perception, not by preventing sodium influx or nerve ending excitation.
• Option C (NSAIDs): NSAIDs (Non - Steroidal Anti - Inflammatory Drugs) work by inhibiting cyclooxygenase (COX) enzymes, reducing prostaglandin synthesis, and their main action is anti - inflammatory and analgesic through reducing inflammation - related pain, not by blocking sodium influx at nerve endings.
• Option D (Tylenol, acetaminophen): The exact mechanism of acetaminophen is not fully clear, but it is not known to work by preventing sodium influx into cells or inhibiting nerve ending excitation.

Answer:

A. Local anesthetics