Contents:
Hypothermia
Studies conducted in the United States and here at Liverpool Hospital
have shown that hypothermia (defined as a core temperature less than 35°C)
affects approximately 20% of seriously injured patients.
It has further been shown that patients who develop core temperatures
of between 32°C and 35°C have an increased mortality, and that those
whose core temperatures fall below 32°C are unlikely to survive.
Hypothermia is more common:
- In females
- As the severity of the injury increases
- With burns
CAUSES
The reasons why patients develop hypothermia are:
- Exposure at the scene
- Exposure in Emergency during assessment
- Administration of IV fluids that are below body temperature
- Impaired thermoregulation due to anaesthesia
PREVENTION
Prevention of hypothermia is an important part of the resuscitation,
and the following measures to prevent hypothermia should be instituted
- Monitor core temperature
- Minimum necessary exposure for a full examination. Cover the patient
afterwards
- Pre-warm IV fluid in a warming cabinet
- Give blood through a warmer. The Level 1 rapid infusion system is always
available
- Use the 'Bair Hugger', especially in CT
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