NREMT Advanced EMT

Category - Trauma

Rick has just received a massive laceration. The blood is starting to clot. What is the first stage of clotting Rick will experience?
  1. Platelet Phase
  2. Vascular Phase
  3. Coagulation Phase
  4. Meshing Phase
Explanation
Answer - B - The first phase of clotting is the vascular phase. During the vascular phase vessels constrict. During the platelet phase platelets adherer to blood vessels walls and the final phase, the coagulation phase, is where fibrin forms a network around the wound for protection. The clotting mechanism normally takes between 7-10 minutes to stop the flow of blood. The nature of the wound and other factors affect how rapidly and well the clotting mechanisms respond to hemorrhage.
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