NUR 529 Exam 2 Questions And Complete Solutions New Update 2024

NUR 529 Exam 2 Questions And Complete Solutions New Update 2024 Systemic arterial pressure - Correct Answer is the main source of afterload on the left heart, Left ventricle afterload is increased with narrowing (stenosis) of the aortic valve Stages of Hemostasis - Correct Answer Vessel Spasm, formation of the platelet plug, blood coagulation (clot retraction, clot dissolution) Vessel Spasm - Correct Answer First stage of hemostasis, constricts the vessel and reduces blood flow. It is a transient event that usually lasts minutes or hours. Formation of the platelet plug - Correct Answer Second stage of hemostasis, 1. platelets are attracted to damaged vessel wall. 2. activation by sub-endothelial tissue. 3. change from smooth disks to spiny spheres. 4. exposing glycoprotein receptors on their surfaces. This step requires a protein molecule called von Willebrand factor that leaks into the injured tissue from the plasma. (adhesion, activation, aggregation) During Hemostasis, platelets change from ..... - Correct Answer Smooth disks to spiny spheres von Willebrand factor - Correct Answer Formation of the platelet plug requires a protein molecule called (helps platelets stick together) Glycoprotein Receptors - Correct Answer Exposed during the formation of the platelet plug when platelets change from smooth disks to spiny spheres 1.Blood coagulation or development of an insoluble fibrin clot - Correct Answer Third step of hemostasis: stabilization of the plug occurs as the coagulation pathway is activated on the platelet surface, and fibrinogen is converted to fibrin. Thrombocytopenia - Correct Answer Results from a decrease in platelet production,