Which of the following effects is NOT caused by a high-dose intravenous administration of epinephrine?

Show Answers

Enhances glycogen breakdown in the liverInduces constriction of the bronchiolesTriggers abnormal heartbeats known as extrasystolesLeads to feelings of anxiety and restlessnessNone of the above

Explanation

Epinephrine, when given in high doses intravenously, typically increases liver glycogenolysis, causes extrasystoles in the heart, and produces symptoms like restlessness and anxiety. However, instead of constricting, epinephrine actually causes bronchodilation, relaxing the airway muscles. Therefore, bronchiolar constriction is not an effect of epinephrine.