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Alternative Routes When SC/IV Unavailable — SCE Palliative Medicine MCQ

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ModerateSyringe Driver & Drug CompatibilityAlternative Routes When SC/IV UnavailableSCE Palliative Medicine

A dying patient requires symptom control medication but has no viable venous access and all standard SC infusion sites are unsuitable (severe cachexia, oedema, skin breakdown). No oral route is available. Which of the following represents the most appropriate alternative route for delivering medications when SC and IV routes are not feasible?

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Correct answer: E — Rectal route — using regular rectal medication administration as an alternative when SC and IV routes are unavailable

The rectal route is explicitly recognised in UK palliative care guidance (NICE, Scottish Palliative Care Guidelines) as a pragmatic alternative when SC infusion and IV access are unavailable. Although rectal administration typically provides periodic dosing (e.g. every 4–8 hours) rather than true continuous infusion, it enables effective symptom control at end of life. Option C is incorrect because NICE guidance specifically recommends against intramuscular injections; the SC route is preferred when available, but rectal supersedes IM when SC is impossible. Option B (inhalational) lacks evidence base. Option D is implausible: transdermal patches exist only for morphine among these drugs, and simultaneous multi-drug transdermal delivery is not feasible. Option A contradicts established UK practice. Renal impairment, cachexia and skin breakdown preclude SC and IV access, making rectal a recognised salvage route in end-of-life palliative care.

Reference: Right Decisions Scottish Palliative Care Guidelines; NICE NG31 (Care of Dying Adults in Last Days of Life); Lancashire & South Cumbria Palliative Care Prescribing Guidelines. All recognise rectal route as alternative when SC/IV unavailable. https://www.rightdecisions.scot.nhs.uk/scottish-palliative-care-guidelines/symptom-management/alternatives-to-regular-medication-normally-given-via-a-syringe-pump-or-subcutaneous-route-when-this-is-not-available/