Core Clinical Concepts Blood disorders disrupt homeostasis. Key pathological threads include:

• Fatigue: Secondary to tissue hypoxia (anemia, cancer).
• Infection Risk: Compromised immunity and risk for infection is a major concern in hematologic cancers and a common side effect of therapy.
• Pain: Common and classic in sickle cell disease (SCD) and oncology.
• Perfusion & Clotting: Excessive clotting impairs perfusion; inadequate clotting causes blood loss and fluid volume deficit.

Anemia: Definition & Pathophysiology Anemia is not a disease but a manifestation of an underlying pathologic process. It is defined as a deficit in red blood cell (RBC) count, hemoglobin (Hgb) quantity/quality, and/or vol ...