Which RBC fragment is associated with DIC and prosthetic valves?

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Multiple Choice

Which RBC fragment is associated with DIC and prosthetic valves?

Shear-induced red blood cell fragmentation produces schistocytes. In conditions with widespread intravascular coagulation or mechanical disruption of flow, such as disseminated intravascular coagulation or when blood passes through a mechanical prosthetic valve, RBCs are torn as they travel through the vessels, yielding these helmet-shaped fragments. This fragmentation pattern is a hallmark of microangiopathic hemolytic processes and valve-related shear stress. Target cells are codocytes seen in liver disease, thalassemia, or hyposplenism; drepanocytes are sickle cells seen in sickle cell disease; elliptocytes are elongated cells typical of hereditary elliptocytosis or certain anemias. None of these specifically reflect mechanical fragmentation from DIC or prosthetic valves, making schistocytes the best fit.

Shear-induced red blood cell fragmentation produces schistocytes. In conditions with widespread intravascular coagulation or mechanical disruption of flow, such as disseminated intravascular coagulation or when blood passes through a mechanical prosthetic valve, RBCs are torn as they travel through the vessels, yielding these helmet-shaped fragments. This fragmentation pattern is a hallmark of microangiopathic hemolytic processes and valve-related shear stress.

Target cells are codocytes seen in liver disease, thalassemia, or hyposplenism; drepanocytes are sickle cells seen in sickle cell disease; elliptocytes are elongated cells typical of hereditary elliptocytosis or certain anemias. None of these specifically reflect mechanical fragmentation from DIC or prosthetic valves, making schistocytes the best fit.

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