Once the INR is managed and the extraction is…
Pharmacology questions in the ADC written exam test applied prescribing decisions, not rote recall of drug names. This exam-level vignette tests your ability to work through clinical details and arrive at the correct management.
Mrs. Li Wei, a 78-year-old woman, presents with a fractured upper left canine that requires extraction. Her medical history includes atrial fibrillation managed with warfarin, and she takes fluoxetine 20 mg daily for depression. She lives alone and mentions she has been taking Panadol Extra (paracetamol 500 mg + caffeine 65 mg) from the chemist for the pain, two tablets four times daily. Her INR from this morning is 4.1. Once the INR is managed and the extraction is eventually performed, what postprocedural pain management is most appropriate given that she is already taking maximum-dose paracetamol?
- A. Switch to oxycodone 5 mg four-hourly as the sole analgesic
- B. Add ibuprofen 400 mg three times daily since paracetamol alone is insufficient
- C. Increase her paracetamol dose to 1.5 g four times daily for the first 48 hours post-extraction
- D. Prescribe tramadol 50 mg four-hourly since it has fewer bleeding interactions than NSAIDs
- E. Continue her current paracetamol regimen and add oxycodone 5 mg as required if pain is severe, with appropriate counselling
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Since the patient is already on maximum paracetamol and NSAIDs are contraindicated (warfarin + fluoxetine), oxycodone is the appropriate third-line option per TG. Oxycodone should be used in combination with non-opioid analgesics at the lowest dose. TG states tramadol is not recommended for dental pain, and it would risk serotonin toxicity with fluoxetine.
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