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EndocrinologyEmergency Medicine

Myxoedema Coma

Decompensated severe hypothyroidism — hypothermia, hypotension, hypoventilation, ALOC. IV levothyroxine + hydrocortisone, supportive care.

Source: Society for Endocrinology Emergency Guidance

Step 1 of ~3
info

Recognise

Severe hypothyroidism with multi-organ decompensation. Triad: hypothermia (often <34°C), ALOC/coma, precipitant (infection, MI, cold exposure, drugs — sedatives/opiates, surgery, missed medication). Other: bradycardia, hypotension, hypoventilation, hyponatraemia, hypoglycaemia, oedema (non-pitting). Mortality 30–40%. Bloods: TSH (↑↑), fT4 (↓), cortisol (random; before steroid), glucose, U&E, FBC, ABG, blood culture, lactate, CK.

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.