A 58-year-old man is brought to the Emergency Department after being found collapsed in a park during winter. He is poorly responsive, with slurred speech and minimal spontaneous movement.
On examination:
Skin is cold and pale
Pupils are sluggish
Heart rate 32 bpm
Blood pressure 86/50 mmHg
Respiratory rate 8/min
Core temperature measured via oesophageal probe is 25°C.
You classify the severity of hypothermia.
What is the temperature threshold for profound hypothermia?
