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Chapter 10 Bleeding

Chapter 10 Bleeding. Blood -average blood volume in an adult is 10-12 pints. Only 2.5 percent of people in NJ donate blood. We need more blood. Delicious snacks will be provided. 3 functions of blood. 1. transports oxygen, nutrients and wastes

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Chapter 10 Bleeding

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  1. Chapter 10Bleeding

  2. Blood-average blood volume in an adult is 10-12 pints. • Only 2.5 percent of people in NJ donate blood. We need more blood. Delicious snacks will be provided.

  3. 3 functions of blood • 1. transports oxygen, nutrients and wastes • 2. protects against disease by producing antibodies and defends against pathogens. • 3. maintain body temperature

  4. Components of Blood • Liquid part of blood-plasma. Makes up half of total blood volume. • Function of plasma-nutrients for energy, growth and cell maintenance, carries wastes and transports other blood components.

  5. Solid components of blood • Red blood cells-produced in marrow of bones. • Function-transport oxygen from lungs to the body cells and carbon dioxide from the cells to the lungs.

  6. White blood cells • Function-disease fighting part of the immune system. • Aid in producing antibodies that help body fight infection.

  7. Platelets • Disk-shaped fragments that are made up of cell fragments. • Function-main component for clotting because they bind together.

  8. 3 Major types of blood vessels • Arteries • Carotid • Brachial • Radial • Femoral • Dorsalis pedis • Veins • Capillaries

  9. Capillaries Link arteries and veins-Teeny tiny! Function-transfer oxygen and other nutrients from the blood into the cells. Pick up waste products from cells and move them to veins.

  10. Arteries • Carry blood away from heart • Travels faster and under pressure-”pumps” • Bright red blood.

  11. Veins • Carry blood to heart • Carry waste products from the cells • Bleeding flows steadily without spurting, easier to control. • Dark red or maroon in color

  12. Capillaries • Most common type of bleeding • Easy to control • Oozes from the wound • Paler red in color than arterial bleeding

  13. External bleeding • Occurs when a blood vessel is opened by tearing the skin. • Treatment-check scene and victim, ask permission, call 911(if needed), put on gloves, apply direct pressure with a sterile bandage, elevate extremity, compress main artery if necessary. Apply extra bandages ON TOP OF EXISTING BANDAGE.

  14. Internal bleeding • Escape of blood from veins, arteries or capillaries. • Signs and Symptoms-swelling, rigidity, anxiety, weak and rapid pulse, rapid breathing or shortness of breath, skin that is cool, pale, bluish or ashen. • Bruising by the injured area. • Nausea/vomiting • Abdominal pain • Excessive thirst

  15. Care for internal bleeding • If severe-call 911 keep comfortable • Monitor breathing • Keep victim from getting chilled or overheated. • Reassure victim • Try to reduce swelling with ice

  16. Avulsion • Skin partially torn away from the body.

  17. Amputation • Skin completely severed from body

  18. Treatment *Wrap in a dressing • Put body part in plastic bag and put on ice. • Transport victim and body part to hospital.

  19. Occlusive bandage • a dressing that prevents air from reaching a wound and that retains moisture, heat, body fluids. It may consist of a sheet of thin plastic affixed with transparent tape.

  20. After applying a bandage • Keep checking below the bandage site to make sure your bandage did not restrict circulation. • Check for FEELING, WARMTH AND COLOR. • Elastic bandages can restrict blood flow if not put on properly

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