Thermal and Electrical trauma Flashcards Preview

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Flashcards in Thermal and Electrical trauma Deck (14):
1

Effects of heat

- heat exhaustion
- heat stroke
- malignant hyperthermia
- inhalation syndrome
- burns

2

Mechanisms of death in burns

- shock and toxaemia
- sepsis
- bronchopneumonia or renal failure
- haemorrhage from acute erosion of the duodenum

3

PM findings in early deaths from burns

- external lesions
- heat rigor
- liver necrosis
- petechial haemorrhages

4

How to differentiate if person was alive or dead when fire reached them

Person who dies after fire reaches them have blood CO concentration >10% and carbon particles in the airways

5

What can cause fractures in a charred body?

- antemortem violence
- action of heat on the skull
- after death falling etc.

6

Causes of death in conflagrations

- burns
- acute monoxide poisoning or other toxic gases
- injury from falling masonry
- other injury (knife, blunt, bullet)

7

Definition of hypothermia

Care temp <35

8

How can body heat be lost?

- conduction
- convection
- radiation
- evaporation

9

Effects of hypothermia

- decreased BMR
- J wave on ECG
- fibrillation
- cold water diuresis
- hyperglycaemia
- coma

10

PM findings in hypothermia

- bright red body
- pancreatic haemorrhages
- paralytic ileus
- visceral congestion

11

Forms of local cold injury

- trench foot
- frostbite

12

Causes of death in electrical trauma

- ventricular fibrillation
- respiratory muscle paralysis
- paralysis of respiratory centre
- extensive burns

13

Factors affecting likelihood of death in electrical trauma

- earthing
- duration of passage of current
- resistance of the body
- other (cardiac disease)

14

Signs of electrocution

- burns = white, irregular and bloodless with central crater and rolled-over edge
- small pinpoint areas of burning