Which term describes the need for higher doses of opioids to achieve the same level of pain relief in an opioid-tolerant patient?

Which term describes the need for higher doses of opioids to achieve the same level of pain relief in an opioid-tolerant patient?

• A. Tolerance
• B. Hyperalgesia
• C. Dependence
• D. Withdrawal

Answer: (A)

Tolerance is the phenomenon where repeated opioid use leads to a diminished analgesic response, so higher doses are needed to achieve the same level of pain relief. With ongoing exposure, the body’s receptors become less responsive, and signaling pathways adapt, making each dose less effective over time. This differs from other concepts: opioid-induced hyperalgesia is when opioids paradoxically increase pain sensitivity, which can complicate management but is not simply about requiring more drug for relief; dependence refers to a physiological adaptation that leads to withdrawal symptoms if the drug is reduced or stopped; withdrawal is the set of symptoms that occur when the drug is abruptly discontinued. So the need for higher doses to regain relief in an opioid-tolerant patient is tolerance.

Tolerance is the phenomenon where repeated opioid use leads to a diminished analgesic response, so higher doses are needed to achieve the same level of pain relief. With ongoing exposure, the body’s receptors become less responsive, and signaling pathways adapt, making each dose less effective over time. This differs from other concepts: opioid-induced hyperalgesia is when opioids paradoxically increase pain sensitivity, which can complicate management but is not simply about requiring more drug for relief; dependence refers to a physiological adaptation that leads to withdrawal symptoms if the drug is reduced or stopped; withdrawal is the set of symptoms that occur when the drug is abruptly discontinued. So the need for higher doses to regain relief in an opioid-tolerant patient is tolerance.