The overreaction of the immune system to a substance that is otherwise harmless is known as:
a. hypersensitivity.
b. hives.
c. anaphylaxis.
d. immunity.
Question 2
A patient can have an allergic reaction caused by intramuscular administration of a medication. This method by which an allergen enters the body is called:
a. inhalation.
b. injection.
c. ingestion.
d. topical.