For clinical reference only — does not replace local trust guidelines or clinical judgement.
Vital Signs

Hypothermia

Hypothermia

Severity
Temp
  • Mild
    32–35 °C
  • Moderate
    28–32 °C
  • Severe
    < 28 °C
🚨 Life-Threatening — exclude first
If suspected, escalate now.
VF / asystole below 30 °C
Sepsis presenting with hypothermia
Hypothyroid coma / myxoedema
Adrenal crisis
❄️

Environmental Causes

Cold exposureImmersion / near drowningFound down
🧬

Endocrine Causes

Hypothyroidism / myxoedema comaAdrenal insufficiencyHypoglycaemia
🦠

Sepsis / Systemic Causes

Sepsis (esp. elderly)Severe burnsMajor trauma
💊

Drugs / Toxins Causes

AlcoholSedatives, opioidsAntipsychotics