Which of the following statements are correct with regards to anaphylaxis? (Select 2 correct answers)

a. Prostaglandins are a key mediator in anaphylaxis as they cause vasodilation, increased vascular permeability, and smooth muscle contraction.

b. Anaphylaxis is a severe allergic reaction that can be fatal.

c. Cytokines are a key mediator in anaphylaxis as they cause vasodilation, increased vascular permeability, and smooth muscle contraction.

d. Anaphylaxis refers to a death following a poison which results in cardiovascular compromise.

e. Anaphylaxis can be the result of a toxin which causes fatal symptoms.

f. Anaphylaxis does not occur the first time a person is exposed to an allergen as you first need to be sensitised.

g. Histamine is a key mediator in anaphylaxis as it causes vasodilation, increased vascular permeability, and smooth muscle contraction.