Which statement best describes tachyphylaxis?

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Prepare for the Pain Control and Anesthesia Test. Enhance your understanding with multiple choice questions, each with detailed hints and explanations. Equip yourself with the knowledge to ace the exam!

Multiple Choice

Which statement best describes tachyphylaxis?

Explanation:
Tachyphylaxis is a rapid decline in a drug’s effect after repeated dosing. With successive doses, the same amount of drug produces a smaller response because receptors become desensitized or the mediators available for signaling are depleted. This creates quick tolerance that can reverse after a period without the drug. It’s not about increased sensitivity, addiction, or running out of the drug. So the statement describing increased tolerance with repeated injections best describes tachyphylaxis.

Tachyphylaxis is a rapid decline in a drug’s effect after repeated dosing. With successive doses, the same amount of drug produces a smaller response because receptors become desensitized or the mediators available for signaling are depleted. This creates quick tolerance that can reverse after a period without the drug. It’s not about increased sensitivity, addiction, or running out of the drug. So the statement describing increased tolerance with repeated injections best describes tachyphylaxis.

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