Question

which of the following types of hypersensitivity reactions is associated with graves disease?
immediate hypersensitivity (type i hypersensitivity)
antibody - mediated diseases (type ii hypersensitivity)
immune complex - mediated diseases (type iii hypersensitivity)
t cell - mediated diseases (type iv hypersensitivity)
question 20 (mandatory) (2 points)
a patient diagnosed with signs and symptoms of infectious mononucleosis presents with transient symptoms of increased thyroid activity. what is the most likely cause of this condition?
reidels thyroiditis
chronic lymphocytic thyroiditis
de quervains thyroiditis
hashimotos thyroiditis

Explanation:

Grave's disease is an autoimmune disorder where auto - antibodies stimulate the thyroid gland. It is a type of antibody - mediated disease (Type II hypersensitivity). In Type II hypersensitivity, antibodies bind to cell - surface antigens, leading to cell damage or dysfunction. For the second question, De Quervain's thyroiditis (subacute thyroiditis) can present with transient hyperthyroidism, especially after a viral infection like infectious mononucleosis. It is often triggered by a viral illness.

Answer:

1. B. Antibody - Mediated Diseases (Type II Hypersensitivity)
2. C. De Quervain's Thyroiditis