Latest 2024/2025 Test Bank| MLT Haematology
Exams| Medical Laboratory Technicians Haematology
Test| MLT 250 Haematology Practice Exam Complete
Solutions| Rated A+
Hemoglobin - ANSWERThis molecule transports oxygen from the capillary beds of
the lungs to the body tissues
Oxygen saturation - ANSWERThe ratio of oxygen bound to hemoglobin
Measured with a pulse oximeter
2,3 DPG - ANSWERThis enzyme stimulates oxygen release from hemoglobin when
blood pH is low (hypoxic/acidotic).
Carboxyhemaglobin - ANSWERHemoglobin disorder in which hgb has a higher
affinity for carbon monoxide than for oxygen. The Oxygen-Hemoglobin curve shifts
left, patient is hypoxemic, and blood appears bright red.
Methemoglobin - ANSWERHemoglobin disorder in which the iron molecule of hgb is
oxidized into Fe+3, causing a left shift in the Oxygen-Hemoglobin curve. Blood
becomes brown colored.
Erythropoiesis - ANSWERThe production and formation of red blood cells
Reticulocyte - ANSWERThe stage of red blood cell development just prior to
maturation
Metarubricyte - ANSWERA red blood cell more immature than a reticulocyte
Rubriblast - ANSWERThe most immature stage of red blood cell development
Leukocytosis - ANSWERMedical term for an increase in white blood cells
Leukopenia - ANSWERMedical term for a decreased number of white blood cells
Neutrophil - ANSWERGranulocyte that functions in phagocytosis, secretion of
mediators of inflammation, antibacterial properties, and microbiocidal action
Eosinophil - ANSWERGranulocyte that functions in phagocytosis, parasiticidal action,
and allergy reactions
Basophil - ANSWERGranulocyte that functions in inflammation and parasiticidal
action, and release histamines
, Circulating pool - ANSWERConsists of freely moving neutrophils, this is the pool
sampled from when blood is drawn
Marginal pool - ANSWERConsists of neutrophils that are "stuck" to the walls of small
vessels
Neutrophils from this pool will be sampled more often in a stressed animal
Heterophil - ANSWERNeutrophils in other species that are elongated and have red
staining granules
Band neutrophil - ANSWERImmature neutrophil that is slightly darker staining and
with a horseshoe shaped, symmetrical nucleus with rounded ends
Left shift - ANSWERAn increase in band neutrophils in the peripheral blood, resulting
from an increased demand for neutrophils due to infection.
Barr body - ANSWERRepresents a remnant of the X chromosome and indicates the
animal is female
Small protrusion on the nucleus of a neutrophil
Lymphocyte - ANSWERAn agranulocytic leukocyte that normally makes up a quarter
of the white blood cell count but increases in the presence of infection
Only leukocyte that recirculates
B cell - ANSWERA type of lymphocyte that produces antibodies
T cell - ANSWERA type of lymphocyte that produces lymphokines, the mediates of
cellular immunity
Lymphoblast - ANSWERAn immature lymphocyte that should never be seen in the
circulating blood -- usually indicates cancer is present in the patient.
Monocyte - ANSWERAn agranulocytic leukocyte that performs phagocytosis to fight
infection
The largest leukocyte, has a very irregular nucleus and sometimes contains vacuoles
Macrophage - ANSWERMonocyte that migrates from the blood to tissue spaces
Macrocytosis - ANSWERIncreased number of larger than normal cells, indicative of
immature cells present in the blood likely resulting from regenerative anemia.
Microcytosis - ANSWERIncreased numbers of smaller than normal red blood cells,
indicative of the presence of spherocytes
May occur in IMHA
Normocytic - ANSWERRefers to normal sized (mature) erythrocytes
Term used to describe a normal MCV value (66-77 fL)
Exams| Medical Laboratory Technicians Haematology
Test| MLT 250 Haematology Practice Exam Complete
Solutions| Rated A+
Hemoglobin - ANSWERThis molecule transports oxygen from the capillary beds of
the lungs to the body tissues
Oxygen saturation - ANSWERThe ratio of oxygen bound to hemoglobin
Measured with a pulse oximeter
2,3 DPG - ANSWERThis enzyme stimulates oxygen release from hemoglobin when
blood pH is low (hypoxic/acidotic).
Carboxyhemaglobin - ANSWERHemoglobin disorder in which hgb has a higher
affinity for carbon monoxide than for oxygen. The Oxygen-Hemoglobin curve shifts
left, patient is hypoxemic, and blood appears bright red.
Methemoglobin - ANSWERHemoglobin disorder in which the iron molecule of hgb is
oxidized into Fe+3, causing a left shift in the Oxygen-Hemoglobin curve. Blood
becomes brown colored.
Erythropoiesis - ANSWERThe production and formation of red blood cells
Reticulocyte - ANSWERThe stage of red blood cell development just prior to
maturation
Metarubricyte - ANSWERA red blood cell more immature than a reticulocyte
Rubriblast - ANSWERThe most immature stage of red blood cell development
Leukocytosis - ANSWERMedical term for an increase in white blood cells
Leukopenia - ANSWERMedical term for a decreased number of white blood cells
Neutrophil - ANSWERGranulocyte that functions in phagocytosis, secretion of
mediators of inflammation, antibacterial properties, and microbiocidal action
Eosinophil - ANSWERGranulocyte that functions in phagocytosis, parasiticidal action,
and allergy reactions
Basophil - ANSWERGranulocyte that functions in inflammation and parasiticidal
action, and release histamines
, Circulating pool - ANSWERConsists of freely moving neutrophils, this is the pool
sampled from when blood is drawn
Marginal pool - ANSWERConsists of neutrophils that are "stuck" to the walls of small
vessels
Neutrophils from this pool will be sampled more often in a stressed animal
Heterophil - ANSWERNeutrophils in other species that are elongated and have red
staining granules
Band neutrophil - ANSWERImmature neutrophil that is slightly darker staining and
with a horseshoe shaped, symmetrical nucleus with rounded ends
Left shift - ANSWERAn increase in band neutrophils in the peripheral blood, resulting
from an increased demand for neutrophils due to infection.
Barr body - ANSWERRepresents a remnant of the X chromosome and indicates the
animal is female
Small protrusion on the nucleus of a neutrophil
Lymphocyte - ANSWERAn agranulocytic leukocyte that normally makes up a quarter
of the white blood cell count but increases in the presence of infection
Only leukocyte that recirculates
B cell - ANSWERA type of lymphocyte that produces antibodies
T cell - ANSWERA type of lymphocyte that produces lymphokines, the mediates of
cellular immunity
Lymphoblast - ANSWERAn immature lymphocyte that should never be seen in the
circulating blood -- usually indicates cancer is present in the patient.
Monocyte - ANSWERAn agranulocytic leukocyte that performs phagocytosis to fight
infection
The largest leukocyte, has a very irregular nucleus and sometimes contains vacuoles
Macrophage - ANSWERMonocyte that migrates from the blood to tissue spaces
Macrocytosis - ANSWERIncreased number of larger than normal cells, indicative of
immature cells present in the blood likely resulting from regenerative anemia.
Microcytosis - ANSWERIncreased numbers of smaller than normal red blood cells,
indicative of the presence of spherocytes
May occur in IMHA
Normocytic - ANSWERRefers to normal sized (mature) erythrocytes
Term used to describe a normal MCV value (66-77 fL)
