Shock first aid is about protecting a person whose body is not getting enough oxygen-rich blood to its vital organs. In first aid, “shock” does not mean emotional shock. It means circulatory shock, which can follow heavy bleeding, burns, severe infection, heart problems or a serious allergic reaction. Left alone, it can lead to organ failure and death, but early action by a bystander can stabilise the person until an ambulance arrives.
Signs of Shock
- Cold, pale, clammy and sweaty skin
- A fast, weak pulse
- Rapid, shallow breathing
- Anxiety or restlessness
- Nausea or vomiting, thirst and dizziness
- Increasing drowsiness, and eventually loss of consciousness
Suspect shock after any significant injury or illness, even if no blood is visible. Our guide to internal bleeding explains why.
Shock First Aid Steps for a Conscious Person
- Make the scene safe and call the emergency number early.
- Treat the cause. Control any external bleeding with firm direct pressure, as described in our guide to severe bleeding first aid, and cover burns and wounds.
- Lay the person down. If there is no head, spinal, chest or leg injury and no breathing difficulty, raise the legs a little to help blood return to the vital organs. If breathing is hard, let them sit in the position that is easiest.
- Support injuries. Immobilise suspected fractures in the position found.
- Keep them warm, not hot. Cover with a blanket and insulate from the cold ground, but avoid overheating because it can worsen their condition.
- Give nothing to eat or drink. It may cause vomiting and they may need an anaesthetic. If help is many hours away in a remote area, small sips of water may be considered on medical advice.
- Reassure and monitor. Record pulse, breathing and alertness every few minutes using our vital signs observations guide.
If the Person Is Drowsy or Unconscious
Open and clear the airway, check breathing and begin the DRABC primary survey. If breathing normally but unresponsive, place them in the recovery position while continuing to control bleeding. If breathing stops, start CPR.
Common Causes Behind Shock and Why Shock First Aid Matters
Blood loss is the classic cause, but burns, severe vomiting and diarrhoea, heart attack, spinal injury, severe infection and anaphylaxis can all reduce circulation. Anaphylaxis needs adrenaline from an auto-injector as well as the steps above. The sooner the cause is found and treated, the better the outlook.
Shock First Aid Mistakes to Avoid
- Delaying the ambulance to see whether the person improves
- Giving alcohol, food or hot drinks
- Moving the person unnecessarily
- Applying direct heat such as hot water bottles
- Leaving them alone
Shock in Children, Older Adults and Pregnancy
Shock first aid follows the same principles for everyone, but the warning signs can be subtler. Children can maintain their blood pressure until they suddenly collapse, so a child who is unusually quiet, pale, floppy or very sleepy after an injury deserves urgent attention even if their pulse seems adequate. Older adults and people taking heart or blood pressure medicines may not develop a fast pulse, so rely on skin colour, alertness and breathing rate as well. Pregnant women in late pregnancy should be helped onto their left side if lying down, to stop the baby’s weight from pressing on the large blood vessels, as explained in our guide to resuscitation in late pregnancy.
What to Tell the Ambulance Crew
Give a short, clear handover: what happened, the time it happened, what injuries you found, what first aid you gave, and the pulse, breathing and alertness readings you recorded with the times. This information helps paramedics start treatment without delay.
Frequently Asked Questions
Is shock the same as being frightened?
No. First aid shock is a circulation problem, although a frightened person may also look pale and shaky. If in doubt, check pulse and breathing.
Should I raise the legs of a person in shock?
Only when there is no suspected spinal, head, chest or leg injury and breathing is comfortable. Otherwise keep them still in the position found.
References and Further Reading
Last updated: October 2026
Prepared by: EHS Guidelines Editorial Team
This article is general educational information and is not a substitute for accredited first aid training or professional medical care. In an emergency, call your local emergency number immediately. Emergency numbers, medicines and protocols differ between countries, so follow local guidance.
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