Hypothermia Flashcards
Stage 1 hypothermia
Conscious
Shivering
Temp 32-35
Stage 2 hypothermia
Impaired GCS
Not shivering
28-32
Stage 3 hypothermia
Unconscious
Retains vital signs
24-28
Stage 4 hypothermia
Cardiac arrest or low flow state
<24
Stage 5 hypothermia
Death
<11.8
Intermittent cardiac arrest <28
5mins CPR
then up to 5 mins without CPR
Intermittent CPR <20
5 mins CPR
Up to 10 mins without CPR
Modifications to ALS in hypothermia
Check for signs of like for 1 min (slow irregular pulse)
Stuff chest wall (make compression and ventilation difficult)
Consider withholding/reducing frequency of cardiac drugs
Cardiac drugs if temp <30
Withhold until warmed to at least 30
Cardiac drugs temp 30-35
Dosing interval doubled eg adrenaline every 6-10 mins
When to use standard cardiac drug protocols
Temp >35