Hematology Final Flashcards

1
Q

Azurophilic

A

a term used to describe the reddish-purple staining characteristics of certain cells or cell structures; having a affinity for azureyes.

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2
Q

Band

A

Cell - an immature granulocyte with a non segmented nucleus; a “stab cell”

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3
Q

Basophil

A

A white blood cell containing basophilic-staining granules in the cytoplasm

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4
Q

Basophilic

A

Blue in color; habing affinity for the basic stain

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5
Q

Eosinophil

A

A white blood cell containing eosinophilic granules in the cytoplasm

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6
Q

Erythrocyte

A

Red blood cell; RBC

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7
Q

Leukocyte

A

White blood cell; WBC

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8
Q

Lymphocyte

A

A small basophilic-staining white blood cell having a round or oval nucleus and playing a vital role in the immune process

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9
Q

Megakaryocyte

A

A large bone marrow cell from which platelets are derived

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10
Q

Monocyte

A

A large white blood cell usually having a convoluted or horseshoe-shaped nucleus

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11
Q

Neutrophil

A

A white blood cell containing neutral-staining cytoplasmic granules and a segmented nucleus; also called Polymorphonuclear cell (PMN), poly, or seg

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12
Q

Platelet

A

A formed element in circulating blood that plays an important role in blood coagulation; a small disk shaped fragment of cytoplasm derived from a megakaryocyte; a thrombocyte

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13
Q

Red Blood Cell (RBC)

A

Blood cell that transports oxygen (O2) to tissues and carbon dioxide (CO2) to the lungs; erythrocyte

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14
Q

Vacuole

A

A membrane-bound compartment in cell cytoplasm

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15
Q

White Blood Cell (WBC)

A

blood cell that functions in immunity; leukocyte

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16
Q

Anisocytosis

A

Marked variation in the sizes of erythrocytes

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17
Q

Atypical Lymphocyte

A

Lymphocyte that occurs in response to viral infections and that is common in infectious mononucleosis; reactive lymphocyte

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18
Q

Differential Count

A

A determination of the relative numbers of each type of white blood cell when a specified number (usually 100) is counted; white blood cell differential count; leukocyte differential count

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19
Q

Hypochromic

A

Having reduced color or hemoglobin content

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20
Q

Macrocytic

A

Having a larger-than-normal cell size

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21
Q

Microcytic

A

Having a smaller-than-normal cell size

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22
Q

Normochromic

A

Having normal color

23
Q

Normocytic

A

Having a normal cell size

24
Q

Phagocytosis

A

The engulfing of a foreign particle or cell by another cell

25
Q

Poikilocytosis

A

Significant variation in the shape of red blood cells

26
Q

reactive Lymphocyte

A

See atypical lymphocyte

27
Q

Mean Cell Hemoglobin (MCH)

A

Average red blood cell hemoglobin expressed in pictograms (pg); mean corpuscular hemoglobin

28
Q

Mean Cell Hemoglobin Concentration (MCHC)

A

Comparison of the weight of hemoglobin in a red blood cell to the size of the red blood cell, expressed in percentage or grams per deciliter (g/dl); mean corpuscular hemoglobin concentration

29
Q

Mean Cell Volume (MCV)

A

Average red blood cell volume in a blood sample, expressed in femtoliters (fl) or cubic microns(u3); mean corpuscular volume

30
Q

Red Blood Cell Indices

A

Calculated values that compare the size and hemoglobin content of red blood cells in a blood sample to reference values; erythrocyte indices

31
Q

Basophilia

A

Abnormal increase in the number of basophils in the blood; basophilic leukocytosis; also, the affinity of cellular structures for basophilic dyes

32
Q

Basophilic Stippling

A

Remnants of RNA and other basophilic nuclear material remaining inside the red blood cell after the nucleus is lost from the cell; small purple granules in red blood cells stained with Wright’s stain

33
Q

Blast Cell

A

An immature blood cell normally found only in the bone marrow

34
Q

Codocyte

A

The target Cell

35
Q

Crenated Cell

A

A shrunken red blood cell with scalloped or toothed margins

36
Q

Drepanocyte

A

Sickle cell

37
Q

Elliptocyte

A

Elongated, cigar-shaped red blood cell

38
Q

Eosinophilia

A

Abnormal increase in the number of eosinophils in the blood

39
Q

Folic Acid

A

A member of the B vitamin complex

40
Q

Howell-Jolly body

A

Nuclear remnant remaining in red blood cells after the nucleus is lost and commonly seen in pernicious anemia and hemolytic anemias

41
Q

Keratocyte

A

A red blood cell deformed by mechanical trauma

42
Q

Leukemia

A

A cancer of white blood cells characterized by an abnormal increase of white blood cells and their precursors in bone marrow, tissue, and peripheral blood

43
Q

Neutrophilia

A

Abnormal increase in the number of neutrophils in the blood

44
Q

nucleated Red Blood Cell (NRBC)

A

An immature red blood cell that has not yet lost its nucleus

45
Q

Red Blood Cell Indices

A

Calculated Values that compare the size and hemoglobin content of red blood cells in a blood sample to reference values; erythrocyte indices

46
Q

Schizocyte

A

A fragmented red blood cell; formerly called aschistocyte

47
Q

Shift to the left

A

the appearance of an increased number of immature neutrophil forms in the peripheral blood

48
Q

Sickle Cell

A

Crescent- or sickle-shaped red cell; drepanocyte

49
Q

Sickle Cell Disease

A

Inherited blood disorder in which red blood cells can form a sickle shape because of the presence of hemoglobin S

50
Q

Stomatocyte

A

Red blood cell with an elongated, mouth-shaped central area of pallor

51
Q

Target Cell

A

Abnormal red blood cell with target appearance; codocyte

52
Q

Thalassemia

A

A genetic disorder involving underproduction of the globin chains of hemoglobin and resulting in anemia

53
Q

Vitamin B12

A

A vitamin essential to the proper maturation of blood cells and other cells in the body.