- A) Butterfly rash
- B) Urticaria
- C) Petechiae
- D) Erythema migrans
Medical nursing MCQ: Immune system
Total MCQ: 59
42 What is graft-versus-host disease related to
- A) Autoimmunity after infection
- B) Host lymphocytes attacking graft
- C) Donor lymphocytes attacking host
- D) Hypersensitivity to graft material
43 Which cell releases perforin to destroy infected host cells
- A) NK cells
- B) Dendritic cells
- C) B lymphocytes
- D) Macrophages
44 What is the primary diagnostic test for HIV infection
- A) ELISA antibody test
- B) C-reactive protein
- C) Complete blood count
- D) ANA test
45 Which disorder is characterized by autoantibodies against thyroid tissue
- A) Rheumatoid arthritis
- B) Systemic lupus erythematosus
- C) Hashimoto’s thyroiditis
- D) Type I diabetes mellitus
46 What vaccine type uses killed pathogens to elicit immunity
- A) Live attenuated
- B) Toxoid
- C) Inactivated
- D) Subunit
47 What is a hypersensitivity reaction mediated by IgE
- A) Type I
- B) Type II
- C) Type III
- D) Type IV
48 What is the role of the thymus in immunity
- A) Produces B cells
- B) Matures T cells
- C) Filters pathogens
- D) Stores memory cells
49 Which immunoglobulin is secreted in mucosal secretions
- A) IgG
- B) IgD
- C) IgM
- D) IgA
50 What lymphocyte type mediates cell-mediated immunity
- A) B cells
- B) Helper T cells
- C) Cytotoxic T cells
- D) Plasma cells