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First Aid Guides

Shock

Causes, signs and symptoms

What can cause shock?

Shock happens when not enough oxygen is getting to your vital organs and tissues. Things that can cause this include:

  • Heart attack
  • Bleeding
  • Vomiting and diarrhoea
  • Burns
  • Pain or trauma
  • Major or multiple fractures
  • Infections
  • Allergic reactions
  • Severe sweating and dehydration

What are the symptoms of shock?

Depending on the cause, signs and symptoms of shock may include:

  • Weak or racing pulse
  • Feeling cold or shivering
  • Dizziness or light-headedness
  • Pale, cold, clammy skin
  • Shallow, rapid breathing
  • Difficulty breathing
  • Anxiety
  • Rapid or weak heartbeat
  • Heartbeat irregularities or palpitations
  • Thirst or a dry mouth
  • Nausea or vomiting
  • Confusion and disorientation
  • Unconsciousness