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43 Cards in this Set

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acute lymphocytic leukemia
immature lymphocytes predominate. This form is seen often in children and adolescents; onset is sudden
acute myelogenous leukemia
immature granulocytes predominate. Platelets and erthrocytes are diminished because of infiltration and replacement of th bone marrow by large numbers of myeloblasts
anemia
deficiency of erthrocytes or hemoglobin
antiglobulin test
test for the presence of antibodies that coat and damage erythrocytes (Rh-negative in infants)
apheresis
separation of blood into component parts and removal of a select portion from the blood
aplastic anemia
failure of blood cell production in the bone marrow
autologous transfusion
collection and later reinfusion of a patients own blood or blood components
bleeding time
time required for blood to clot from a tiny puncture wound (8 minutes or less)
blood transfusion
whole blood or cells are taken from a donor and infused into a patient
bone marrow biopsy
microscopic examination of a core of bone marrow removed with a needle
chronic lymphocyte leukemia
Abnormal numbers of relatively mature lymphocytes predominate in the marrow, lymph nodes, and spleen. Occurs in the elderly and follows a slowly progressive course. Doesn't require immediate treatment.
chronic myelogenous leukemia
both mature and immature granuloyctes are present in large numbers in the marrow and bloodstream. slow progressive illness with which patients may live many years without encountering life threatening problems. (adults 55 and older)
coagulation time
time required for venous blood to clot in a test tube (usually less then 15 minutes)
complete blood count
determination of numbers of blood cells, hemoglobin concentration, hematocit, and red cell values-MCH, MCV, MCHC
dyscrasia
abnormal or pathologic condition of the blood. blood diseases
ecchymoses
larger blue or purplish patches on the skin (bruises)
erythrocyte sedimentation rate
speed at which erythrocytes settle out of plasma
granulocytosis
abnormal increase in granulocytes in the blood
hematocrit
percentage of erythrocytes in a volume of blood
hematopoietic stem cell transplant
peripheral stem cells from a compatible donor are administered to a recipient
hemochromatosis
excess iron deposits throughout the body
hemoglobin test
total amount of hemoglobin in a sample of peripheral blood
hemolytic anemia
reduction in red cells due to excessive destruction
hemophilia
excessive bleeding caused by hereditary lack of blood clotting factors necessary for blood clotting
intrinsic factor
Vitamin B12 cannot be absorbed into the bloodstream without the aid of this substance
leukemia
increase in cancerous white blood cells
mononucleosis
infectious disease marked by increased number of leukocytes and enlarged cervical lymph nodes
multiple myeloma
malignant neoplasm of bone marrow
palliative
drugs that relieve symptoms and stop disease progression, which improves the outlook for this disease
pernicious anemia
lack of mature erythrocytes caused by inability to absorb vitamin B12 into the body
petechiae
tiny purple or red flat spots appearing on the skin as a result of hemorrhages
platelet count
number of platelets per cubic millicent or microliter of blood
polycythemia vera
general increase in red blood cells
prothrombin time
test of the ability of blood to clot
purpura
multiple pinpoint hemorrhages and accumulation of blood under the skin
red blood cell morphology
microscopic examination of a stained blood smear to determine the shape of individual red cells
red blood cell count
number of erythrocytes per cubic millimeter or micoliter of blood
relapse
when the disease symptoms and signs reappear, necessitating further treatment
remission
disappearance of signs and symptoms of disease
sickle cell anemia
hereditary condition characterized by abnormal sickle shape of erythrocytes and by hemolysis
thalassemia
inherited defect in the ability to produce hemoglobin, usually seen in persons of Mediterranean background
white blood cell count
number of leukocytes per cubic millimeter or microliter of blood
white blood cell differential
percentages of different types of leukocytes in the blood