Blood

Question 1

anisocytosis

Answer 1

the presence in the blood of erythrocytes exhibiting distinct variation in size; normal in some species, especially cattle

Question 2

azurophilic

Answer 2

literally having an affinity for (staining with( azure; the name “azure” is applied to any one of several dyes used in hematology; azurophilic cell types usually stain blue to purple

Question 3

buffy coat

Answer 3

an off-white layer consisting of leukocytes and platelets, observed above packed erythrocytes in centrifuged blood

Question 4

CBC (complete blood count)

Answer 4

a series of tests performed on a blood sample, including erythrocyte count (millions/gl), erythrocyte indices, leukocyte counts (thousands/gl), and platelet count (hundreds of thousand/gl)

Question 5

central pallor

Answer 5

the pale-staining (light) central area of erythrocytes, visible with light microscopy, resulting from the biconcavity of the erythrocytes; in domestic animals, central pallor is most prominent in canine erythrocytes

Question 6

crenation

Answer 6

the formation of abnormal notching in the edge of erythrocytes, most often artifact; in domestic animals, crenation is most common in feline erythrocytes

Question 7

differential leukocyte count

Answer 7

a count on a stained blood smear of the numbers of the different types of leukocytes, usually expressed as the number of each leukocyte type per gl of blood

Question 8

Heinz (erythrocyte refractile) bodies

Answer 8

small (0.5 to 1 micrometer), round to oval inclusions, representing denatured hemoglobin, normally seen in some feline erythrocytes; are observed in routinely stained blood smears as single, blunt projections from the erythrocyte surface

Question 9

hematocrit

Answer 9

the proportion of the volume of a centrifuged blood sample that is comprised of erythrocytes (packed red blood cells), usually measured as a percent; synonymous with packed cell volume (PCV)

Question 10

hematology

Answer 10

the science dealing with the morphology of blood and blood-forming tissues, and with their physiology and pathology

Question 11

Howell-Jolly bodies

Answer 11

small, smooth, round remnants of the nucleus, occasionally seen in erythrocytes; small numbers are normally present in erythrocytes of domestic mammals, especially horses and cats; increased numbers can be seen in anemia and following splenectomy

Question 12

poikilocytosis

Answer 12

the presence in the blood of erythrocytes exhibiting distinct variations in shape; is normal in goat erythrocytes

Question 13

polychromatophilia (polychromasia)

Answer 13

a condition in which erythrocytes, upon staining, show shades of blue tinged with pink; polychromasia is typical of reticulocytes

Question 14

Romanowsky’s stain

Answer 14

any group of stains (ex: Wright’s stain and Diff-Quik) consisting of eosin and methylene blue used to demonstrate the formed elements of blood

Question 15

rouleau formation

Answer 15

an abnormal group of erythrocytes, adhering together like a stain of coins; is most prominent in equine erythrocytes; “rouleaux” is the plural form

Question 16

polycythemia

Answer 16

increase in erythrocytes

Question 17

anemia

Answer 17

decrease in erythrocytes

Question 18

leukocytosis

Answer 18

increase in leukocytes

Question 19

leukopenia

Answer 19

decrease in leukocytes

Question 20

nuetrophilia

Answer 20

increase in neutrophils

Question 21

nuetropenia

Answer 21

decrease in neutrophils

Question 22

eosiniphilia

Answer 22

increase in eosinophils

Question 23

eosinopenia

Answer 23

decrease in eosinophils

Question 24

basophilia

Answer 24

increase in basophils

Question 25

lymphocytosis

Answer 25

increase in lymphocytes

Question 26

lymphopenia

Answer 26

decrease in lymphocytes

Question 27

monocytosis

Answer 27

increase in monocytes

Question 28

monocytopenia

Answer 28

decrease in monocytes

Question 29

thrombocytosis

Answer 29

increase in platelets

Question 30

thrombocytopenia

Answer 30

decrease in platelets