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chapter 29
med surg
| Term | Description |
|---|---|
| bonr marrow | the blood-forming tissue that fills the central core of bones |
| erythrocyte | red blood cell |
| erythropoiesis | process of red blood cell production |
| fibrinolysis | a process resulting in the dissolution of fibrin to maintain blood in its fluid form |
| hematemesis | vomiting of blood that indiacates bleeding in the upper GI tract; may be bright red or of "coffee ground" character |
| hematology | the study of blood and blood-forming tissues |
| hematopoieses | blood cell production |
| hemoglobin | a protein-iron molecule that is the major compnent of erythrocytes and transports oxygen |
| hemolysis | destruction of erythrocytes |
| leukopenia | a total white blood count less than 4,000/ul |
| neutropenia | a reduction of the neutrophil count to less than 1000 to 1500/ul (1 to 1.5 x 109/L) |
| pancytopenia | marked decrease in the number of RBC's, WBC's, and platelets |
| phagocytosis | a process by which WBC's ingest or engulf any unwanted organism and then digest and kill it |
| reticulocyte | an immature erythrocyte; measurement of then umber of reticulocytes is a useful means of evaluating the rate and adequacy of erythrocyte production |
| stem cell | a non-differentiated immature blood cell found in the bone marrow that is a precursor to all blood cellls |
| thrombocyte | platelet |
| thrombocytopenia | reduction of the platelet count below the normal range of 150,000 to 400,000/ul (150 x 400 x 109/L) |
Created by:
crystalih
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