Hypersensitivity type 3

What type of allergic reaction is immunocomplex-mediated hypersensitivity?

• Type I

• Type II

• Type III

• Type IV

What type of antibodies are involved in the formation of immunocomplexes in type III hypersensitivity?

• IgA and IgE

• IgM and IgG

• IgD and IgE

• IgA and IgM

What happens to immunocomplexes in type III hypersensitivity?

• They are correctly eliminated

• Deposited in tissues

• They disappear spontaneously

• Are not formed

In which tissues can immunocomplexes be deposited?

• Kidneys and skin

• Lungs and joints

• All of the above

• None of the above

What activates the complement system in type III hypersensitivity?

• Free antigens

• Deposited immune complexes

• Loose antibodies

• T cells

Which immune cell releases inflammatory mediators in this hypersensitivity?

• B lymphocytes

• Neutrophils

• Platelets

• Mast cells

How long does it take for type III hypersensitivity to appear after exposure to the allergen?

• Immediately

• A few hours

• A few days

• Weeks

Which of these diseases is associated with type III hypersensitivity?

• Asthma

• Systemic lupus erythematosus (SLE)

• Urticaria

• Allergic rhinitis

Which medication is used to treat inflammation in type III hypersensitivity?

• Antibiotics

• NSAIDs

• Vaccines

• Antihistamines

What is a common symptom of type III hypersensitivity?

• Joint pain

• Stuffy nose

• Hair loss

• Diarrhea