Which of the following is not an action of epinephrine when administered intravenously in a high dose ?
Correct answer: B. Causes broachiolar constriction
- A. Increased liver glycogenolysis
- B. Causes broachiolar constriction
- C. Evokes extrasystoles in the heart
- D. Produces restlessness and anxiety
Explanation
High-dose intravenous epinephrine causes bronchodilation through β2-receptor stimulation, not bronchoconstriction. It can also produce glycogenolysis, cardiac extrasystoles and anxiety, making bronchial constriction the exception.
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