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Anticoagulant
a chemical that prevents blood coagulation
Diurnal
having a daily cycle
Lipemic
having a cloudy appearance due to excess lipid content
Deoxyhemoglobin
the hemoglobin formed when oxyhemoglobin releases oxygen to tissues
EDTA
ethylendiaminetetra acetic acid; an anticoagulant commonly used in hematology
Granulocyte
a leukocyte containing granules in the cytoplasm; any of the neutrophilic, eosinophilic, or basophilic leukocytes
Hemoglobin (Hb, Hgb)
the major functional component of red blood cells that serves as the oxygen
Hemopoiesis
the process of blood cell formation and development; hematopoiesis
Hemostasis
the process of stopping bleeding
Megakaryocyte
a large bone marrow cell from which platelets are derived
Oxyhemoglobin
the form of hemoglobin that binds and transports oxygen
Platelet
a formed element in circulating blood that plays an important role in blood coagulation; a small disk
Stem cell
a primitive, undifferentiated bone marrow cell
Thrombocyte
a blood platelet
Capillary action
the action by which a fluid enters a tube because of the attraction between the fluid and the tube
Heparin
an anticoagulant used in certain laboratory procedures
Cephalic vein
a superficial vein of the arm commonly used for venipuncture
Gauge
a measure of the diameter of a needle
Hypodermic needle
a hollow needle used for injections or for obtaining fluid specimens
Lumen
the open space within a tubular organ or tissue
Median cubital vein
a superficial vein located in the bund of the elbow (cubital fossa) that connects the cephalic vein to the basilic vein
Palpate
to examine by touch
Phlebotomy
venipuncture; entry of a vein with a needle
Syringe
a hollow, tube like container with a plunger, used for injecting or withdrawing fluids
Hemostasis
the process of stopping bleeding
Stem cell
a primitive, undifferentiated bone marrow cell
Leukocyte
blood cell that functions in immunity; white blood cell (WBC)
Aperture
an opening.
Cell diluting fluid
a solution used to dilute blood for cell counts.
Hemacytometer
a heavy glass slide made to precise specifications and used to count cells microscopically; a counting chamber.
Hemacytometer coverglass
a special cover glass of uniform thickness used with a hemacytometer.
Immunity
resistance to disease or infection.
Isotonic solution
a solution that has the same concentration of dissolved particles as the solution or cell with which it is compared.
Cyanthemoglobin
a stable colored compound formed when hemoglobin is reacted with Drabkins reagent; hemigloincyanide.
Drabkin’s Reagent
a hemoglobin
Globin
the protein portion of the hemoglobin molecule.
heme
the iron portion of the hemoglobin.
hemiglobincyanide
cyanmethemoglobin.
Hemoglobin
the major functional component of RBCs that serves as the oxygen
Buffer
a substance that lenses change in the Ph of a solution when acid or base is added
Note 
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