What is a hematocrit?
Hematocrit is the percentage of leukocytes and platelets in a whole blood sample.
Hematocrit is the percentage of all formed elements in a whole blood sample.
Hematocrit is the percentage of plasma in a whole blood sample.
Hematocrit is the percentage of erythrocytes in a whole blood sample.
Hematocrit is the percentage of erythrocytes in a whole blood sample.
Which of the following is NOT regulated by the blood?
nutrient levels
body temperature
pH level
fluid volume
nutrient levels
Which of the following plasma proteins is improperly matched with its function?
gamma globulins: lipid transport
albumin: osmotic pressure
fibrinogen: clotting
alpha globulin: transport of metal ions and fat-soluble vitamins
gamma globulins: lipid transport
In a centrifuged sample of blood, what should NOT be in the plasma portion of the sample?
fibrinogen
albumin
electrolytes
platelets
platelets
Which plasma constituent is the main contributor to clotting?
fibrinogen
albumin
beta globulins
alpha globulins
fibrinogen
What is the name of the protein found in erythrocytes that transports respiratory gases?
fibrinogen
albumin
hemoglobin
antibodies
hemoglobin
What triggers erythropoietin (EPO) production to make new red blood cells?
excess oxygen in the bloodstream
too many platelets
a high hematocrit
reduced availability of oxygen
reduced availability of oxygen
Which part of the hemoglobin molecule binds carbon dioxide for transport?
iron
spectrin
amino acids of the globin
heme group
amino acids of the globin
Choose the statement that is true concerning hemoglobin.
It is composed of four protein chains and four heme groups.
When hemoglobin is not bound to oxygen, it appears blue.
It is found in the plasma portion of blood.
It can bind a maximum of three oxygen molecules.
It is composed of four protein chains and four heme groups.
Which of the following does NOT stimulate erythrocyte production?
testosterone
hyperventilating
a drop in normal blood oxygen levels
erythropoietin
hyperventilating
Which type of leukocyte is responsible for antibody production?
basophils
monocytes
eosinophils
lymphocytes
lymphocytes
Art-based Question
Identify the leukocytes in the figure in order.
eosinophil, neutrophil, monocyte, basophil, lymphocyte
monocyte, eosinophil, lymphocyte, lymphocyte, neutrophil
neutrophil, basophil, eosinophil, monocyte, lymphocyte
neutrophil, eosinophil, basophil, lymphocyte, monocyte
neutrophil, eosinophil, basophil, lymphocyte, monocyte
From which cell do the granulocytes descend?
myeloblast
monoblast
promonocyte
lymphoid stem cell
myeloblast
On a blood smear slide prepared using Wright's stain, you observe a large cell with a U-shaped nucleus and pale blue cytoplasm. This cell is most likely a(n) __________.
basophil
monocyte
eosinophil
lymphocyte
monocyte
Which of the following leukocyte is NOT correctly matched with its function?
basophils: inflammation
eosinophil: bacterial macrophage
lymphocytes: immune response against viral infections
monocytes: macrophage
eosinophil: bacterial macrophage
What factor stimulates platelet formation?
thrombopoietin
plasmin
erythropoietin
interleukin 2
thrombopoietin
Art-based Question
During which event of hemostasis do clotting factors (procoagulants) assist with the transformation of blood from a liquid to a gel?
A
B
C
D
D
Hemostasis is important for __________.
stoppage of bleeding
white blood cell production
red blood cell production
red blood cell recycling
stoppage of bleeding
Which step in hemostasis involves activation of formed elements in the blood?
vascular spasm
coagulation
platelet plug formation
fibrin production
platelet plug formation
Which of the following represents a difference between extrinsic and intrinsic blood clotting pathways?
One is triggered by tissue damage, while the other cannot be triggered by tissue damage.
One involves calcium ions, while the other does not.
One is faster than the other.
One leads to the production of prothrombin activator and the other does not.
One is faster than the other.
Which of the following would NOT lead to a bleeding disorder?
thrombocytopenia
vitamin K deficiency
impaired liver function
excess calcium in the diet
excess calcium in the diet
A person who lacks agglutinogen A but has agglutinogen B would have blood type __________.
AB
B
O
A
B
Choose the incompatible transfusion.
Donate type B blood to a recipient with type O blood.
Donate type A blood to a recipient with type AB blood.
Donate type B blood to a recipient with type AB blood.
Donate type O blood to a recipient with type AB blood.
Donate type B blood to a recipient with type O blood.
Which ABO blood type is considered to be the universal recipient?
O
A
AB
B
AB