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Hematology Final Flashcards

(53 cards)

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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

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A

Having normal color

23
Q

Normocytic

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A

Having a normal cell size

24
Q

Phagocytosis

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A

The engulfing of a foreign particle or cell by another cell

25
Poikilocytosis
Significant variation in the shape of red blood cells
26
reactive Lymphocyte
See atypical lymphocyte
27
Mean Cell Hemoglobin (MCH)
Average red blood cell hemoglobin expressed in pictograms (pg); mean corpuscular hemoglobin
28
Mean Cell Hemoglobin Concentration (MCHC)
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
Mean Cell Volume (MCV)
Average red blood cell volume in a blood sample, expressed in femtoliters (fl) or cubic microns(u3); mean corpuscular volume
30
Red Blood Cell Indices
Calculated values that compare the size and hemoglobin content of red blood cells in a blood sample to reference values; erythrocyte indices
31
Basophilia
Abnormal increase in the number of basophils in the blood; basophilic leukocytosis; also, the affinity of cellular structures for basophilic dyes
32
Basophilic Stippling
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
Blast Cell
An immature blood cell normally found only in the bone marrow
34
Codocyte
The target Cell
35
Crenated Cell
A shrunken red blood cell with scalloped or toothed margins
36
Drepanocyte
Sickle cell
37
Elliptocyte
Elongated, cigar-shaped red blood cell
38
Eosinophilia
Abnormal increase in the number of eosinophils in the blood
39
Folic Acid
A member of the B vitamin complex
40
Howell-Jolly body
Nuclear remnant remaining in red blood cells after the nucleus is lost and commonly seen in pernicious anemia and hemolytic anemias
41
Keratocyte
A red blood cell deformed by mechanical trauma
42
Leukemia
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
Neutrophilia
Abnormal increase in the number of neutrophils in the blood
44
nucleated Red Blood Cell (NRBC)
An immature red blood cell that has not yet lost its nucleus
45
Red Blood Cell Indices
Calculated Values that compare the size and hemoglobin content of red blood cells in a blood sample to reference values; erythrocyte indices
46
Schizocyte
A fragmented red blood cell; formerly called aschistocyte
47
Shift to the left
the appearance of an increased number of immature neutrophil forms in the peripheral blood
48
Sickle Cell
Crescent- or sickle-shaped red cell; drepanocyte
49
Sickle Cell Disease
Inherited blood disorder in which red blood cells can form a sickle shape because of the presence of hemoglobin S
50
Stomatocyte
Red blood cell with an elongated, mouth-shaped central area of pallor
51
Target Cell
Abnormal red blood cell with target appearance; codocyte
52
Thalassemia
A genetic disorder involving underproduction of the globin chains of hemoglobin and resulting in anemia
53
Vitamin B12
A vitamin essential to the proper maturation of blood cells and other cells in the body.

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