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Health Unit #2: First Aid

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Health Unit #2: First Aid. Bleeding. External Bleeding. External bleeding occurs when there is a cut or break in the skin. This may lead to an infection if not treated properly. Three Types of Bleeding. What are they?. Arterial Bleeding. Identifiers: bright red spurts out rapidly

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external bleeding
External Bleeding
  • External bleeding occurs when there is a cut or break in the skin.
  • This may lead to an infection if not treated properly.
arterial bleeding
Arterial Bleeding


  • bright red
  • spurts out rapidly
  • difficult to stop

* Arteries have a higher pressure and the blood travels faster.

venous bleeding
Venous Bleeding


  • dark red
  • more common since veins are closer to the skin
  • flows steadily
capillary bleeding
Capillary Bleeding


  • capillaries link arteries and veins
  • most common
  • oozes
  • clotting occurs easily
  • blood thickens to seal the opening or cut in order to stop bleeding
types of open wounds
Types of Open Wounds
  • Open wounds occur when there is a break in the skin and external bleeding occurs.
  • the skin is rubbed or scraped away
  • bleeding is light and easily controlled
  • when the skin is pierced by a pointed object such as a tac or a nail
  • a cut with jagged or smooth edges
  • the skin is split from a knife or broken glass
  • a piece of skin is torn away
  • usually involves heavy bleeding
first aid for bleeding
First Aid for Bleeding

What to do when external bleeding occurs?

  • R.E.D Principle: Rest, Elevation, Direct pressure
  • Most important thing to do is to REASSURE the person and help him/her stay calm
first aid for bleeding1
First Aid for Bleeding
  • Depending on the severity of the injury, call 911 or if it is safe to do so, take the casualty to the hospital