The most severe consequence of a type I hypersensitivity reaction is:
A) urticaria.
B) hives.
C) anaphylaxis.
D) antibody-dependent cell-mediated cytotoxicity (ADCC).

Question

Quizplus · Accepted Answer

Anaphylaxis is the most severe consequence of a type I hypersensitivity reaction. It is a systemic, life-threatening reaction that can occur within seconds to minutes after exposure to an allergen. Symptoms can include difficulty breathing, low blood pressure, rapid heartbeat, and loss of consciousness. Urticaria and hives are both skin reactions that can occur in a type I hypersensitivity reaction, but they are not as severe as anaphylaxis. ADCC is a type of immune response that occurs in cell-mediated immunity, not in type I hypersensitivity.

The Most Severe Consequence of a Type I Hypersensitivity Reaction