A patient with chronic low back pain (7/10) takes oxycodone 10 mg every 4 hours plus acetaminophen. Which WHO analgesic ladder step does this represent?
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A
Step 1: Non-opioid analgesics only
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B
Step 2: Mild-to-moderate opioids plus non-opioids
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C
Step 3: Strong opioids plus non-opioids with or without adjuvants
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D
Step 4: Interventional pain management