Blood Terms L-Z PDF Print E-mail
Leukemia cancer of white blood cells with uncontrolled increase in total white blood cell count.
Leukopenia low total white cell count.
Lymphocytes (T-cells or B-cells) cell of the immune system, critical for fighting infections.
Myelodysplastic Syndrome an abnormal development of the cells produced in the bone marrow. This might be an abnormality in shape, size or organization of adult cells. Abnormal proliferation of cells CAN progress to leukemia.
Neutropenia a low absolute neutrophil count (ANC). The count falls below 1500 per microliter.
Neutrophil (also known as Granulocyte) a mature white blood cell that fights bacteria infections.
Pancytopenia abnormally low number of all blood cells.
Petechiae tiny red dots on the skin due to bleeding under the skin. Usually caused by low platelet count.
Phagocytosis engulfment and destruction of bacteria or cells by certain white blood cells, including neutrophils.
Plasma a yellowish fluid in the bloodstream which contains various proteins and other substances. Red cells, white cells and platelets are suspended in plasma.
Platelets (also known as Thrombocytes) blood cells that prevent bleeding and bruising. Normal counts range form 150,000 to 400,000. The help to form a blood clot.
Platelet Aggregation the sticking of platelets to each other to form a clot. This can be evaluated by laboratory testing. Abnormal results reflect an increased tendency to blood, despite a normal platelet count.
Red Blood Cells (RBC) Small round cells that contain hemoglobin, which are necessary to carry oxygen throughout the body. Red blood cells account for almost half of your blood volume.
Sepsis infection of the blood stream or body tissues. Sepsis can be very serious.
Severe Chronic Neutropenia when the ANC (absolute neutrophil counts) is below 500
Stem Cells cells that make the platelets, red cells and white cells in the marrow.
Stroma the supporting tissue of the bone marrow.
Thrombocytopenia – a condition in which the number of platelets is less than 100,000 per microliter. Thrombocytopenia may increase the risk of bleeding.
White blood cells (WBC) blood cells, which fight infections. The normal count is about 8,000.