Which statement about beta-2 agonists is supported by the material?

Prepare for the NREMT Advanced-EMT Test. Use flashcards and multiple choice questions, complete with hints and explanations. Ready yourself for success on your exam!

Multiple Choice

Which statement about beta-2 agonists is supported by the material?

Explanation:
Beta-2 agonists activate receptors on airway smooth muscle, which increases cAMP inside the cells and causes the muscles to relax. This relaxation opens the airways, lowers resistance, and improves airflow during bronchospasm. That’s why bronchodilation is the correct and supported effect of beta-2 agonists. They’re not intended to lower heart rate or decrease blood pressure as their primary action; when cardiovascular effects occur, they’re usually mild and not the main purpose of these drugs. They also do not cause bronchoconstriction.

Beta-2 agonists activate receptors on airway smooth muscle, which increases cAMP inside the cells and causes the muscles to relax. This relaxation opens the airways, lowers resistance, and improves airflow during bronchospasm. That’s why bronchodilation is the correct and supported effect of beta-2 agonists. They’re not intended to lower heart rate or decrease blood pressure as their primary action; when cardiovascular effects occur, they’re usually mild and not the main purpose of these drugs. They also do not cause bronchoconstriction.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy