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Hematology Glossary > Hematology Glossary - Part 1 > Flashcards

Hematology Glossary - Part 1 Flashcards

1
Q

acute

A

refers to a disease that begins suddenly and/or progresses quickly. Example: acute myeloid leukemia.

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2
Q

allogeneic

A

refers to blood, stem cells, bone marrow, or other tissue that is transferred from one person to another (Example: allogeneic bone marrow transplantation)

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3
Q

anemia

A

a blood condition in which a person has decreased hemoglobin, hematocrit, or red blood cells, or has red blood cells that do not function properly

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4
Q

antibody

A

a protein found in the blood that recognizes and binds to other substances (see “antigen” below). Helpful antibodies, such as those to viruses or bacteria, neutralize or destroy the target and prevent infection. Auto- or self-antibodies that work against a person’s own red blood cells or platelets may cause destruction of these important blood components and cause disease. Example: Idiopathic Thrombocytopenic Puprpura (ITP)

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5
Q

anticoagulant

A

a drug that decreases the blood’s ability to clot

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6
Q

antigen

A

a marker protein on cells of the body or foreign substances, such as a virus or bacteria (see “antobody” above)

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7
Q

artery

A

a muscular vessel that carries oxygen- and nutrient-rich blood under high pressure from the heart to other parts of the body

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8
Q

arterial thromboembolism

A

a clot that forms within an artery and may obstruct the flow of blood

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9
Q

autologous

A

refers to blood or other tissue derived from a person’s own body (Example: autologous bone marrow transplantation)

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10
Q

B lymphocyte

A

a type of white blood cell (also known as a B cell) that produces antibodies

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11
Q

basophil

A

a type of white blood cell that may increase with bone marrow damage, parasitic infections, or allergic reactions

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12
Q

benign

A

refers to a non-cancerous disease (Opposite: malignant)

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13
Q

bleeding disorder

A

the clinical problem that results when the blood does not clot properly

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14
Q

blood

A

the specialized fluid in your body that has many functions, including carrying oxygen and nutrients to other tissues, forming clots in response to injury, and carrying defensive cells and antibodies that fight infection

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15
Q

blood banking

A

the process of collecting, separating, and storing blood products

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16
Q

blood cancer

A

a condition (also known as a hematologic malignancy) that may affect the blood, bone marrow, or other hematopoietic organs. Normal blood production and function is typically interrupted by the uncontrolled growth of an abnormal type of blood cell

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17
Q

blood smear/film

A

the glass slide on which doctors look at blood cells under the microscope to determine if their appearance and number are normal

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18
Q

blood transfusion

A

a procedure in which blood collected from a volunteer donor is transferred to another person

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19
Q

bone marrow

A

the soft, spongy tissue inside of bones where blood cells are produced

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20
Q

bone marrow transplantation

A

the transfer of healthy bone marrow cells into a person whose bone marrow is defective or has been damaged by chemotherapy or radiation (see allogeneic and autologous)

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21
Q

cancer

A

the clonal abnormal and uncontrolled growth of cells

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22
Q

capillaries

A

the body’s smallest blood vessels, which connect arteries to veins

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23
Q

chemotherapy

A

a medical treatment for the destruction of cancer cells

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24
Q

chronic

A

refers to a slowly progressing disease; example: Chronic Myelogenous Leukemia (see “acute” above)

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25
Q

circulatory system

A

the heart and network of blood vessels responsible for transporting blood throughout the body

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26
Q

clinical trial

A

a research study involving human volunteers to evaluate new ways to prevent, diagnose, manage, or treat medical problems or diseases

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27
Q

clot

A

a clump of platelets and blood proteins (also known as a thrombus) that form a plug at the site of an injured blood vessel to prevent excessive bleeding. A clot may also form inside a blood vessel and block that vessel, which is called a thrombosis or a blood clot

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28
Q

coagulation

A

the process by which blood clots

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29
Q

complete blood count (CBC)

A

a test that provides information about the types and numbers of cells in one’s blood; health care professionals use the findings to diagnose conditions like anemia, infection, and other disorders

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30
Q

congenital

A

refers to a condition that is present at or before birth, even if there were no signs of the problem when the person was a child

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31
Q

cord blood stem cells

A

blood cells from the umbilical cord, collected when the baby is born, that have the unique property of self-renewal as well as the ability to develop into other types of cells; they may be used in stem cell transplants

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32
Q

deep vein thrombosis

A

a type of blood clot that forms in a major vein of the leg or, less commonly, in the arms, pelvis, or other large veins in the body

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33
Q

eosinophil

A

a type of white blood cell that mediates allergic reactions and defends the body from infection by parasites and bacteria

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34
Q

erythrocyte

A

also called the red blood cell; the most abundant cell in the blood whose primary role is to carry the protein hemoglobin that transports oxygen from the lungs to the rest of the body, and CO2 from the body back to the lungs

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35
Q

erythropoietin

A

a hormone produced primarily by the kidneys that controls the production of red blood cells

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36
Q

factor

A

a protein in the blood that is needed to form a blood clot

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37
Q

ferritin

A

a form of iron that is stored in the liver and released as needed to make new red blood cells

38
Q

fibrin

A

a threadlike protein that supports the formation of blood clots and provides the initial structure upon which new tissue can form at the site of an injury

39
Q

granulocyte

A

a type of white blood cell that includes neutrophils, eosinophils, and basophils

40
Q

hematocrit

A

the percentage of the whole blood volume that is made up of red blood cells; it is abbreviated Hct

41
Q

hematologic malignancy

A

a disease (also known as a blood cancer) affecting the blood, bone marrow, or other hematopoietic organs in which normal blood production and function is interrupted by the uncontrolled growth of an abnormal type of blood cell

42
Q

hematologist

A

a physician who specializes in researching, diagnosing, and treating blood disorders

43
Q

hematology

A

the scientific study of blood and blood-forming tissues

44
Q

hematopoiesis

A

the process by which the body produces new blood cells

45
Q

hematopoietic stem cell

A

a cell that can develop into any type of blood cell; often abbreviated HSC

46
Q

hemoglobin

A

a protein in red blood cells that carries oxygen to other cells in the body, and CO2 back to the lungs; often abbreviated HGB, Hb, or Hg

47
Q

hemoglobinopathy

A

a blood disease resulting from structural differences in hemoglobin produced by the body

48
Q

hemophilia

A

a congenital or inherited bleeding disorder caused by a shortage of certain clotting factors in the blood

49
Q

idiopathic

A

refers to a disease or condition without a known cause

50
Q

immune system

A

the network of cells, tissues, and organs that defend the body from infection and disease

51
Q

intravascular hemolysis

A

a condition in which red blood cells break down in the blood stream

52
Q

iron

A

a mineral that is important for maintaining many body functions and an integral part of hemoglobin (see above)

53
Q

leukemia

A

a type of cancer found in the blood and bone marrow that is caused by the production of abnormal blood cells

54
Q

leukocyte

A

a type of cell (also known as a white blood cell or WBC) in the blood that is primarily responsible for protecting the body from infection; there are five major types of white blood cells (basophils, eosinophils, lymphocytes, monocytes, and neutrophils), each with special properties and functions

55
Q

lymph node

A

small organs throughout the body that play a role in the immune system by filtering out foreign particles, such as viruses and bacteria, and producing immune cells

56
Q

lymphocyte

A

a type of white blood cell that plays a role in the immune system; there are two main populations of these cells: T lymphocytes, which help regulate the function of other immune cells and directly attack infected cells and tumors, and B lymphocytes, which make antibodies

57
Q

lymphocytic

A

an adjective of lymphocyte

58
Q

lymphoma

A

a type of blood cancer that occurs when abnormal lymphocytes (a type of white blood cell) multiply and collect in the lymph nodes and other tissues

59
Q

malignant

A

refers to a cancerous tumor or disease that may spread or metastasize to other parts of the body (see “benign” above)

60
Q

monocyte

A

a type of white blood cell that ingests bacteria and foreign particles

61
Q

myelogenous

A

refers to a disease of the blood-forming cells in the bone marrow

62
Q

myeloma

A

a cancer of plasma cells (white blood cells that produce disease- and infection-fighting antibodies)

63
Q

neutropenia

A

a low number of granulocytes (white blood cells that fight infection)

64
Q

neutrophil

A

the most common type of white blood cell, which helps the body fight infection

65
Q

oncology

A

the scientific study of cancer

66
Q

peripheral blood

A

blood that is circulating through the body’s blood vessels and heart

67
Q

peripheral blood stem cells

A

rare cells in the peripheral blood that have the unique property of self-renewal as well as the ability to develop into other types of cells; these cells may be increased and used as the source of cells for a stem cell transplant

68
Q

plasma

A

the liquid component of blood that transports blood cells throughout the body along with nutrients, waste products, antibodies, proteins, and chemical messengers such as hormones

69
Q

plasma cell

A

a type of white blood cell that produces disease- and infection- fighting antibodies (see “myeloma” above)

70
Q

platelet

A

a small fragment of cell cytoplasm (also known as a thrombocyte) involved in the blood’s clotting process

71
Q

platelet count

A

part of the complete blood count, a blood test used to evaluate bleeding and clotting disorders

72
Q

pulmonary embolism

A

a dangerous condition that occurs when a clot in a vein detaches from the blood vessel in which it formed and travels through the heart to the lungs where it becomes wedged, preventing adequate blood flow

73
Q

radiation therapy

A

a treatment used to destroy cancer cells with high-energy rays, such as x-rays or gamma rays

74
Q

red blood cell

A

the most common blood cell; it carries the protein hemoglobin, which transports oxygen from the lungs to the rest of the body and CO2 back to the lungs; red blood cells are also known as erythrocytes or RBCs

75
Q

sickle cell anemia

A

a congenital inherited blood disorder characterized by a different type of hemoglobin that causes red blood cells to become rigid and sickle-shaped

76
Q

stem cell

A

a cell that has the unique property of self-renewal as well as the ability to develop into other types of specialized cells, such as blood cells

77
Q

T lymphocyte

A

a type of white blood cell (also known as a T cell) that helps protect the body against infection and cancer; some T cells can also release substances to attract other white blood cells and can regulate the activity of other immune cells

78
Q

targeted therapy

A

a type of treatment that destroys cancer cells without harming normal cells

79
Q

thalassemia

A

an inherited congenital blood disorder that results in the decreased production of hemoglobin and red blood cells

80
Q

thrombectomy

A

the surgical removal of a blood clot

81
Q

thrombocyte

A

a small fragment of cytoplasm (also known as a platelet) involved in the blood’s clotting process

82
Q

thrombosis

A

excess clotting, which may block veins or arteries

83
Q

thrombus

A

a clump of platelets and blood proteins (also known as a clot) that form a plug at the site of an injured blood vessel to prevent excessive bleeding

84
Q

transferrin

A

a protein that attaches to iron in the blood stream and delivers it to the liver

85
Q

tumor

A

an abnormal mass of cells, which can be cancerous (malignant) or benign

86
Q

vein

A

a vessel that carries blood low in oxygen away from the body’s organs and back to the heart

87
Q

venous thromboembolism

A

a clot that forms within a vein and may obstruct the flow of blood

88
Q

von Willebrand disease

A

a bleeding disorder caused by decreased or abnormal von Willebrand factor, a blood protein that helps the blood to clot; it may be inherited or acquired

89
Q

white blood cell

A

a type of blood cell (also known as a leukocyte) that is primarily responsible for protecting the body from infection; there are five major types of white blood cells (basophils, eosinophils, lymphocytes, monocytes, and neutrophils), each with special properties and functions

90
Q

white blood cell count (WBC)

A

a bloodtest that measures the number of white blood cells to help detect problems in the body’s immune system

Hematology Glossary (2 decks)

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