#red blood cells

• Aglobulia — A marked decrease or total absence of red blood cells (erythrocytes) in the blood, representing a severe and critical form of structural anemia. This hematological condition severely disrupts the blood's capacity to transport oxygen to biological tissues and is often caused by a severe dysfunction of the hematopoietic bone marrow.
• Anemia — The definite articulated form of the feminine noun 'anemie', designating a hematological condition characterized by a decrease in the number of erythrocytes (red blood cells) or the hemoglobin concentration below normal values. This pathological process disrupts structural oxygen transport.
• Anemia — A pathological condition characterized by a decrease in the number of erythrocytes (red blood cells) or the concentration of hemoglobin in the blood below the normal age- and sex-adjusted values. This pathophysiological process disrupts the structural transport of oxygen to tissues, manifesting clinically as pallor, chronic fatigue, muscle weakness, and dizziness.
• Anisocytosis — A pathological condition characterized by the presence in the blood of cells (especially red blood cells or erythrocytes) of abnormally unequal and varied sizes; anisocytosis. Frequently identified via a peripheral blood smear examination and quantified by the RDW (red cell distribution width) parameter, it serves as a critical clinical indicator for the differential diagnosis of various types of anemia, iron deficiencies, or bone marrow disorders.
• Antihemolytic — Preventing, combating, or stopping hemolysis (the parasitic or pathological process of red blood cell destruction and subsequent release of hemoglobin into the plasma); a chemical substance, antibody, or biological factor that protects the structural integrity of the erythrocyte membrane. In a clinical sense, it is utilized in the treatment of hemolytic anemias to stabilize blood cells.
• Annulocyte — A pathological red blood cell (erythrocyte) with a ring-like appearance, characterized by an extremely pronounced central pallor and a reduced concentration of hemoglobin restricted to the periphery of the cell membrane; it serves as a specific diagnostic indicator for severe iron-deficiency anemias or thalassemias.
• Autoagglutination — A spontaneous biological or immunological phenomenon in which blood cells (especially erythrocytes or platelets) in a sample cluster and clump together on their own, as a result of the direct reaction between membrane antigens and specific autoantibodies present in their own serum, without the addition of an external reagent; a clinical test relevant for diagnosing autoimmune hemolytic anemias.
• Autohemolysis — A pathological biological process consisting of the spontaneous and premature destruction of red blood cells (erythrocytes) within the blood due to the action of the organism's own serum or autoantibodies; a clinical laboratory test used to diagnose congenital or acquired hemolytic anemias.