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Faecal impaction with overflow diarrhoea — SCE Geriatric Medicine MCQ

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EasyGastroenterologyFaecal impaction with overflow diarrhoeaSCE Geriatric Medicine

An 88‑year‑old woman with severe osteoarthritis is admitted with constipation, abdominal pain and overflow diarrhoea. She takes co‑codamol 30/500 two tablets four times daily, amitriptyline and ferrous sulphate. Rectal examination reveals hard stool in the rectum; abdominal X‑ray shows faecal loading without obstruction. What is the most appropriate management?

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Correct answer: DTreat faecal impaction and reduce constipating medicines where possible

The correct answer is D. This presentation—constipation with overflow diarrhoea and radiological faecal loading—is classic faecal impaction. NICE CG49 instructs that faecal loading must be addressed before managing incontinence; loperamide is contraindicated with hard stool/infrequent bowel motions ([nice.org.uk](https://www.nice.org.uk/guidance/CG49/chapter/Recommendations?utm_source=openai)). Management includes disimpaction (oral laxatives ± enemas/manual removal) and reviewing/reducing constipating medications such as opioids, tricyclics, and iron. Option C risks worsening impaction. Option A is unnecessary without red‑flag symptoms. Option B is counterproductive. Option E misunderstands pathophysiology and adds anticholinergic burden.

Reference: NICE Guideline CG49 “Faecal incontinence in adults: management”, section 1.2.3 and 1.3.9 (2007, reaffirmed 2018), https://www.nice.org.uk/guidance/CG49/chapter/Recommendations