A patient with advanced cancer rates their pain as 7/10 and is currently on scheduled oral morphine. Which WHO analgesic ladder principle guides the next step?
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A
Add a non-opioid adjuvant and remove the opioid
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B
Increase the opioid dose or switch to a stronger opioid for uncontrolled moderate-to-severe pain
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C
Switch to non-pharmacologic methods only
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D
Reduce the opioid dose to prevent tolerance