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Biot's Breathing Pattern Recognition — SCE Palliative Medicine MCQ

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ModerateEnd of Life CareBiot's Breathing Pattern RecognitionSCE Palliative Medicine

A 65‑year‑old man with advanced lung cancer is in the last hours of life. His breathing changes to prolonged apnoeas of 20–30 seconds alternating with clusters of rapid breaths (Biot’s breathing). What does this indicate?

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Correct answer: B — Severe brainstem dysfunction—Biot’s breathing reflects failure of the pontine and medullary respiratory centres and indicates imminent death

Biot’s breathing—alternating periods of apnoea and clusters of rapid breaths—is a hallmark of dysfunction of the medullary/pontine respiratory centres, indicating severe brainstem failure and impending death. The context—advanced lung cancer and terminal phase—combined with this distinct pattern makes it a sign of the dying process. The other options are misleading: anxiety causes tachypnoea but not this periodic pattern; pneumonia presents with fever, cough, and infection signs—not isolated respiratory pattern change; opioid overdose leads to depressed, slow, shallow respiration, not clustered apnoeas; partial airway obstruction produces noisy sounds and would require intervention, inappropriate in terminal comfort care.

Reference: NICE guideline NG31 “Care of dying adults in the last days of life”, recognition of changed breathing patterns including apnoea (2015), supported by expert judgement analysis showing breathing pattern as key indicator of imminent death (BMJ Open, 2018).