A patient who undergoes a high level of mast cell degranulation, dilation of blood vessels, and acute drop in blood pressure is likely suffering from
A) an autoimmune disease.
B) a typical allergy that can be treated by antihistamines.
C) an organ transplant, such as a skin graft.
D) the effect of exhaustion on the immune system.
E) anaphylactic shock immediately following exposure to an allergen.

Question

Quizplus · Accepted Answer

Anaphylactic shock is characterized by the release of large amounts of histamine from mast cells, which leads to vasodilation, increased permeability of blood vessels, and a drop in blood pressure. It is a severe and potentially life-threatening allergic reaction that requires prompt medical attention, often with the use of epinephrine. Choices A, C, and D are not relevant to the symptoms described and choice B does not fully capture the severity of the condition.

A Patient Who Undergoes a High Level of Mast Cell