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ch 33 terms

hematologic terms

ABSOLUTE NEUTROPHIL COUNT ANC number of circulating neutrophils segs + bands X total WBC's = ANC (neutrophils)
ANEMIA decreased RBC count
ANERGY diminished activity to antigens
ANGIOGENESIS formation of new blood VESSELS
ANGULAR CHEILOSIS cracking sore at corner of mouth
APLASIA lack of cellular develpoment
BAND CELL immature neutrophil
BLAST CELL primitive WBC
CYTOKINES hormones from leukocytes, vital to reg of: hematopoiesis, apoptosis, & immune response
D-DIMER test, measures fibrin breakdown, dx of disseminated intravasccular coagulation
DIFFERENTIATION development of fxns-characteristics different from parent/stem cell
ERYTHROPOIESIS process of RBC formation
ERYTHROPOIETIN kidney hormone, needed for erythropoiesis
FIBRIN string like protein / basis of thrombus and blood clot
FIBRINOGEN protein converted into fibrin to form thrombus or clot
FIBRINOLYSIS process of breakdown of thrombus or clot
GRANULOCYTE granulated WBC = neutrophil (all 'phils' appear granular)
HAPTOGLOBIN blood protein made @ liver, binds free hemoblogin released from RBC (erythrocyte), removed by reticuloendothelial system
HEMOCRIT total blood volume of RBC's
HEMATOPOIESIS process formation/maturation of blood cells
HEMOGLOBIN iron containing protein of RBC, delivers O2 to tissues
HEMOLYSIS destruction of RBC's
HEMOSIDERIN iron containing pigment from breakdown of hemoglobiin
HEMOSTASIS balance between clot formation and clot dissolution
HISTIOCYTES cells present in loose connective tissue capable of phagocytosis
HYPOCHROMIA pallor w/in RBC caused by decreased hemoglobin content
LEFT SHIFT + release of bands(immature WBC's)from marrow in response to + immune need
LEUKEMIA uncontrolled proliferation of WBC's (often immature bands)
LEUKOPENIA < normal # WBC's in circulation
LYMPHOCYTE form of WBC involved with immune fxn
MACROPHAGE reticuloendothelial cells capable of phagocytosis
MICROCYTE smaller than normal RBC
MYELOID pertaining to nonlymphoid blood cells that become RBC, PLATELETS, MACROPHAGES, MAST CELLS, & WBC
NEUTROPENIA < normal neutrophils
NEUTROPHIL mature WBC capable of phagocytosis, primary defense against bacterial infection
NORMOCHROMIC normal RBC color, indicates normal amount of hemoglobin
NUCLEATED RBC immature RBC, remaining portion of nucleus
OXYHEMOGLOBIN combined O2 & hemoglobin, found in arterial blood
PANCYTOPENIA abnormal deccrease in WBC's, RBC's, & PLATELETS
PETECHIAE tiny capillary hemorrhages
PLASMINOGEN protein converted to plasmin to dissolve thrombi and clots
PLATELET thrombocyte, involved in coagulation
POIKILOCYTOSIS shape variation of RBC's
RETICULOCYTES slightly immature RBC's usually only 1% in circulation
RETICULOENDOTHELIAL SYSTEM complex system of cells capable of phagocytosis
THROMBOCYTOPENIA < normal platelet count
THROMBOCYTOSIS > normal platelet count
Created by: rtcdavis