Immunology and Hematology Quiz

What is the primary function of neutrophils?

• Antibody production

• Phagocytosis

• Platelet aggregation

• Histamine release

Which of the following describes polycythemia?

• Low WBC count

• Low platelet count

• Increased RBC count

• Decreased RBC count

Which cells are primarily involved in cellular immunity?

• B lymphocytes

• T lymphocytes

• Neutrophils

• Macrophages

Which immunoglobulin is most abundant in the serum?

• IgA

• IgD

• IgE

• IgG

Which immunoglobulin is primarily responsible for allergic reactions?

• IgA

• IgG

• IgE

• IgM

Which clotting factor is known as anti-hemophilic factor A?

• Factor VI

• Factor VII

• Factor VIII

• Factor IX

What is the role of calcium in coagulation?

• Enzyme inhibition

• Enzyme activation

• Blood vessel dilation

• Cofactor in clotting cascade

What is the first step in platelet plug formation?

• Fibrinogen activation

• Platelet adhesion

• Fibrin polymerization

• Thrombin activation

Which condition is due to deficiency of clotting factor IX?

• Hemophilia A

• Hemophilia B

• Hemophilia C

• Purpura

Which of the following is not a function of platelets?

• Phagocytosis

• Vasoconstriction

• Release of clotting factors

• Formation of platelet plug