ch. 25 bleeding Flashcards
the pump
heart
containers
blood vessels
fluid
blood/body fluids
external bleeding
the body can not tolerate a loss of blood greater than 20%
signs of bleeding
poor appearance
S/S of shock
blood loss is rapid and ongoing
cant control bleeding
cut ends of the blood vessels begin to narrow reducing amount of bleeding
vasoconstriction
lack of one or more clotting factors
hemophilia
epitaxis
nose bleed (blood is irritating to the stomach
what percentage of drop in body heat can cause blood clotting factors to lower and allow patient to bleed faster
1%
what is a hemostatic agent used for?
to help the blood to form a clot to help stop bleeding
arterial bleeding
bright red, spurting w pulse, difficult to control
how long does it take for a clot to form
10 minutes
on average, how long does it take to bleed out
2 minutes
venous bleeding
dark red, flows slowly, easier to manage, if big enough it could pour out.
capillary bleeding
dark red, oozes slowly/steadily
things that could cause clotting factors to fail
movement, meds, temp change, severe injury, hemophilia, environment, removed bandage
pressure dressings
self adhering, Israeli, olaes
splint
air splint, vacuum splint, SAM splint
tournaquets
cravat and windless, soft T-wide, emergency med tourniquet
what not to do with tourniquets
using when you shouldn’t, not using when you should , putting it on too high above the wound, don’t take it off, not making it tight enough
how can you close a neck wound
close neck wound with your gloved hand
