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Flashcards in Hematology Final Deck (53):
1

Azurophilic

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

2

Band

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

3

Basophil

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

4

Basophilic

Blue in color; habing affinity for the basic stain

5

Eosinophil

A white blood cell containing eosinophilic granules in the cytoplasm

6

Erythrocyte

Red blood cell; RBC

7

Leukocyte

White blood cell; WBC

8

Lymphocyte

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

9

Megakaryocyte

A large bone marrow cell from which platelets are derived

10

Monocyte

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

11

Neutrophil

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

12

Platelet

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

13

Red Blood Cell (RBC)

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

14

Vacuole

A membrane-bound compartment in cell cytoplasm

15

White Blood Cell (WBC)

blood cell that functions in immunity; leukocyte

16

Anisocytosis

Marked variation in the sizes of erythrocytes

17

Atypical Lymphocyte

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

18

Differential Count

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

19

Hypochromic

Having reduced color or hemoglobin content

20

Macrocytic

Having a larger-than-normal cell size

21

Microcytic

Having a smaller-than-normal cell size

22

Normochromic

Having normal color

23

Normocytic

Having a normal cell size

24

Phagocytosis

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.