A case of carbon monoxide poisoning is presented with unusual complications; some of which have not been reported previously. A 48-years-old Asian male presented to the emergency department with dyspnoea, altered state of consciousness and pale discolouration of skin after being locked inside a factory room with burning coal. Patient was in acute respiratory distress. Arterial blood gas analysis showed respiratory acidosis with hypoxaemia. On 3rd day, patient developed dark coloured urine and right upper limb ischaemia. Acute renal failure was diagnosed. A doppler ultrasound showed stenosis of radial and ulnar arteries. 0n 8th day, patient regained consciousness and complained of loss of vision. An MRI of the brain revealed bilateral occipital venous infarcts. Cortical venous infarcts and arterial stenosis are rare complications of acute carbon monoxide poisoning.
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