Question

Epinephrine is used during resuscitation:

A) Because it causes vasoconstriction
B) To stop allergic reactions causing heart failure
C) As a pain reliever for the victim
D) Because it is an antiarrhythmic

Answer 1

Epinephrine is used during resuscitation because it induces vasoconstriction, increasing blood pressure, which is critical for ensuring blood flow to vital organs.

Step-by-step explanation:

Epinephrine is used during resuscitation primarily because it causes vasoconstriction, which is vital for increasing blood flow to vital organs during cardiac arrest. Epinephrine plays a significant role in circulation as it reacts with both alpha and beta-adrenoreceptors, leading to constriction of blood vessels, hence increasing blood pressure. Besides its use in resuscitation, epinephrine is also crucial in the treatment of anaphylaxis. This is because it can quickly raise blood pressure, relax bronchial smooth muscle, and thus counteract the effects of anaphylactic shock.