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Medical Terminology

Purple Module - Hematology 1

TermDefinition
albumin the most abundant protein in the blood
anisocytosis red blood cells that vary in cell size
antecubital fossa the inside of the elbow
anticoagulant medication that inhibits blood clotting
arteriole a small artery
artery vessel which carries blood away from the heart
basilic vein large vein on the inner side of the upper arm
basophils WBCs which release histamine & is increased during allergic reactions
biohazardous waste waste that is considered to be contaminated & potentially infectious
blood liquid tissue containing plasma & formed elements
buffy coat thin layer between plasma & RBCs in a volume of anticoagulated blood; contains WBCs & platelets
capillary puncture puncture of the capillary to withdraw blood
cephalic vein large vein on the outer side of the arm
complete blood count (CBC) a test to determine the cellular components of blood
cross-match a test to determine whether donated blood will be compatible with recipient's blood
differential test to determine the % of the five types of WBCs in blood
dyscrasia any blood abnormality
ecchymosis bruising
eosinophils WBCs which counteract histamine & is increased during the healing process
erythrocyte sedimentation rate (ESR) test that measures the speed at which RBCs settle out in anticoagulated blood
erythrocytes red blood cells
erythrocytolysis destruction of RBCs
glucometer instrument used to measure the amount of glucose in the blood
hemapheresis process where blood is withdrawn from a patient
hematocrit test to determine the % of packed RBCs in a volume of blood
hemoglobin iron containing pigment of RBCs; helps transport oxygen
hemophilia hereditary disease in which there is a lack of factor VIII or IX causing the blood to not clot properly
hemopoiesis formation of blood cells
hemostasis to stop bleeding
hepatitis B viral infection & inflammation of the liver, causing jaundice; easily transmissable
hyperchromasia RBCs that have an increased red color
hypochromasia RBCs that have a decreased red color
lancet small, sharp instrument used to perform capillary punctures
leukocytes white blood cells
leukocytosis an increase in WBCs due to bacterial infections or leukemia
leukopenia a decrease in WBCs due to viral infections or bone marrow depression
lymphocytes WBCs responsible for maintaining the immune system; includes T-cells & B-cells
macrophage large WBC capable of phagocytosis
median cubital vein large vein in the middle of the upper arm; most commonly used for venipuncture
megakaryocyte cell in the bone marrow which produces thrombocytes
monocytes WBCs responsible for phagocytosis; often referred to as a macrophage; increased during long-term or chronic infections
neutrophils WBCs responsible for phagocytosis; increased during short-term or acute infections
normochromasia RBCs that are normal in color
petechiae pin sized red dots on the skin, caused by broken capillaries
phagocyte a cell capable of ingesting foreign substances & other cells
phagocytosis the process of ingesting foreign substances & other cells
phlebotomy incision into a vein to remove blood
plasma liquid portion of unclotted blood; cells, clotting factors, & other substances are found in plasma
poikilocytosis RBCs that vary in cell shape
polychromasia RBCs that vary in red color
prothrombin time (PT) test to determine the amount of time it takes to activate prothrombin in order for a clot to form
red blood cell count test to approximate the number of RBCs in a cubic millimeter of blood
reticulocyte immature, nucleated RBC
serology the study of serum
serum liquid portion of clotted blood; does not contain clotting factors
thrombocytes platelets; cell fragments which initiate the clotting process
thrombocytopenia decreased amount of platelets
thrombolysis destruction of a blood clot
tourniquet strap used to occlude the veins when performing venipuncture
venipuncture surgical puncture of a vein to withdraw blood
Created by: ginaliane