ATI Med Surg Proctored Study Guide 2022
( Assessment of the Hematologic System)
• The blood, blood cells, lymph, and organs involved with blood formation or blood storage compose the hematologic system.
• Perfusion: The total arterial blood flow through the tissues (peripheral perfusion) and blood that is pumped by the heart (central perfusion).
• All systems depend on the blood for oxygen perfusion, and any problem of the hematologic system affects total body health.
• Clotting: A complex, multi-step process by which blood forms a protein-based structure (clot) in an appropriate area of tissue injury to prevent excessive bleeding while maintaining whole body-blood flow (perfusion).
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