Combat Lifesaving Flashcards
What is shock?
Failure of the cardiovascular system to pump blood to all parts of the body
What are the signs and symptoms of shock?
- Sweaty but cool skin
- Pale skin
- Restlessness, nervousness
- Thirst
- Loss of blood (caused by internal or external bleeding)
- CONFUSION OR LOSS OF AWARENESS
- Faster than normal breathing rate
- Blotchy or bluish skin (especially around the mouth and lips)
- Nausea and vomiting
How many liters of blood does the average adult contain?
5
Hemorrhagic shock will occur with how much blood loss?
20%+
How long can it take for a body to bleed out?
60 - 120 seconds
What are the causes of hemorrhagic shock?
- External loss of whole blood
- Internal hemorrhage
- Extreme loss of plasma due to sever burns
What are the steps to prevent and treat for shock?
- Move the casualty to cover
- Position the casualty on his back
- Elevate the casualty’s feet higher than the level of his heart
- Loosen clothing at the neck, waist or wherever it may be binding
- Prevent chilling or overheating
- Calm the casualty
- DO NOT give the casualty food or drink
What are the two types of soft tissue injuries?
- Closed wounds (skin is not broken)
- Open wounds (skin is broken)
How are closed wounds caused?
Blunt objects striking the body with sufficient force to crush the tissue beneath the skin
What is a contusion?
When blood leaks into the wound
What is a hematoma?
A blood tumor - when serious amounts of tissue are damaged a ump may develop rapidly
What are the classifications of open wounds?
- Abrasions
- Lacerations
- Incisions
- Puncture wounds
What is an abrasion?
A loss of a portion of the epidermis and part of the dermas from its being rubbed or scraped across a hard surface
What is a laceration?
A cut produced by glass, metal, or any other object that may leave a jagged wound on the sking surface and cut through the subcutaneous tissue, the underlying muscles, associated nerves, and blood vessels
What is an incision?
Same thing as a laceration, but has no jagged edges