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(hē″mō-krō′mō-jĕn) [″ + chroma, color, + gennan, to produce] A compound, such as hemoglobin, in which heme is combined with a nitrogen-containing molecule; e.g., protein.
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(hē′mō-klĭp) A metal or absorbable clip used to ligate blood vessels.
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(hē″mō-kŏn-sĕn-trā′shŭn) A relative increase in the number of red blood cells resulting from a decrease in the volume of plasma, e.g., in dehydration.
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(hē′mŏ-kŭl″chŭr) [hem- + culture] The isolation of bacterial or parasitic infectious agents from blood incubated in the laboratory on special nutrients, such as glucose or nitrates.
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(hē″mō-kū′prē-ĭn) A blue copper-containing compound present in red blood cells.
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(hē′mō-sīt) [″ + kytos, cell] 1. Any blood cell. 2. A red blood cell.
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(hē″mō-sī′tō-blăst) [″ + ″ + blastos, germ] An undifferentiated stem cell found in mesenchymal tissues that may give rise to any type of blood cell. SEE: illus.
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HEMOCYTOBLAST (STEM CELL) AND BLOOD CELLS
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hemocytometer, hemacytometer, hematocytometer
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(hē″mŏ-sī-tom′ĕt-ĕr, hē″mă-tō-sī-tom′ĕt-ĕr) [hemocyte + -meter, measure] A device for determining the number of cells in a stated volume of blood.
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(hē″mō-dī″ŏ-fĭl-trā′shŭn) [″ + Gk. dia, through + ″] A method of ultrafiltration in which a patient’s blood is directed through a hemofilter and then dialyzed by a counter-current solution before it is returned to the patient. Volume, electrolytes, metabolites, or toxins are removed from the blood before it re-enters the body.
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(hē″mō-dī-al′ĭ-sĭs, ′ĭ-sēz″) pl. hemodialyses [hemo- + dialysis] The clearing of urea, metabolic waste products, toxins, and excess fluid from the blood by use of an artificial kidney. This procedure is used to treat end-stage renal failure, transient renal failure, and some cases of poisoning or drug overdose. In the U.S., more than 345,000 patients undergo hemodialysis regularly for end-stage renal disease. The primary use of hemodialysis is to manage renal failure, a disorder in which fluids, acids, electrolytes, and many drugs are ineffectively eliminated in the urine. Hyperkalemia, uremia, fluid overload, acidosis, and uremic pericarditis are other indications for hemodialysis. SEE: table; hemoperfusion;. SEE: Nursing Diagnoses Appendix.
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