Bronchospasm associated with respiratory ailments such as asthma,bronchitis,and emphysema is often treated with

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Bronchospasm associated with respiratory ailments such as asthma, bronchitis, and emphysema is often treated with beta-2 adrenergic agonists. These drugs work by relaxing the smooth muscle in the airways, which opens them up and decreases the symptoms of bronchospasm. Beta-1 adrenergic agonists (A) and antagonists (B) are not effective for treating bronchospasm as they do not act on the smooth muscle in the airways. Similarly, beta-2 adrenergic antagonists (D) can actually worsen bronchospasm by blocking the relaxing effects of beta-2 agonists. Alpha-1 adrenergic agonists (E) are not typically used to treat bronchospasm associated with respiratory ailments.

Bronchospasm Associated with Respiratory Ailments Such as Asthma,bronchitis,and Emphysema Is