Free Immunopathology MCQs with Answers

8 Immunopathology MCQs from Pathology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.

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8 questions

  • A. Induces cell mediated immunity
  • B. Induces Humoral immunity
  • C. Induces immunity by activation of cytoxic T-cells
  • D. None of the aboveOrder DNA Kits

Explanation: TH2 cells secrete cytokines such as IL-4, IL-5 and IL-13, which promote B-cell activation, antibody production and eosinophil responses.

Correct answer: Induces Humoral immunity
  • A. Macrophages
  • B. Dendritic cells
  • C. Langerhan's cells
  • D. NK cells (Netural killer cells)

Explanation: Dendritic cells, Langerhans cells and macrophages are professional antigen-presenting cells, whereas natural killer cells primarily kill…

Correct answer: NK cells (Netural killer cells)
  • A. Unable to express MHC class I proteins
  • B. Exprss MHC class I proteins
  • C. Express MHC class II proteins
  • D. Unable to express MHC class II proteins

Explanation: NK cells preferentially attack infected or tumour cells that have lost or markedly reduced MHC class I expression, removing the normal…

Correct answer: Unable to express MHC class I proteins
  • A. Deficiency of complement factor
  • B. Congenital thymic aplasia
  • C. Inborn error of metabolism
  • D. Chromosomal anomaly

Explanation: DiGeorge syndrome classically involves failure of thymic development, causing T-cell deficiency and often hypocalcaemia from parathyroid…

Correct answer: Congenital thymic aplasia
  • A. Wasserman reaction
  • B. Mituda reaction
  • C. Fernandez reaction
  • D. None of the aboveConsult Online Doctors

Explanation: The Fernandez reaction is the early, delayed-type response appearing about 24–48 hours after lepromin injection.

Correct answer: Fernandez reaction
  • A. Foreign body reaction
  • B. Humoral
  • C. Cell mediated
  • D. None of the above

Explanation: Tuberculosis is controlled mainly by cell-mediated immunity, especially Th1 cells activating macrophages through interferon-γ.

Correct answer: Cell mediated
  • A. Intermediate leprosy
  • B. Tuberculoid leprosy
  • C. Borderline lepromatous leprosy
  • D. Lepromatous leprosy

Explanation: Virchow cells are lipid-laden foamy macrophages packed with Mycobacterium leprae, a hallmark of lepromatous leprosy.

Correct answer: Lepromatous leprosy
  • A. Systemic arthus reaction
  • B. An anaphylactic shock
  • C. A transplant immunity
  • D. None of the above

Explanation: Serum sickness is a type III hypersensitivity reaction caused by circulating immune complexes, classically described as a systemic Arthus…

Correct answer: Systemic arthus reaction

Immunopathology MCQs: common questions

Are these Immunopathology MCQs free?

Yes. All Immunopathology MCQs from Pathology are free on TestUstad, with unlimited attempts and no account needed. Nothing on this page is a sample or a trial.

How many Immunopathology MCQs are on this page?

There are 8 Immunopathology MCQs in the Pathology bank, shown 20 to a page with the correct answer and an explanation on each.

Does every Immunopathology MCQ have an explanation?

Yes. Each Immunopathology question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.

Can I take a timed Immunopathology test?

Yes. The practice button on this page starts a free Immunopathology test drawn from the Pathology bank. It marks each answer instantly, gives you a score at the end, and can be retaken as many times as you like.