A client being treated for asthma is placed on a bronchodilator to relieve bronchospasms. Which of the following are classifications of bronchodilators?
a. Phenothiazines
b. Sympathomimetics
c. Anticholinergics
d. Xanthine derivatives
e. Antihistamines
b. Sympathomimetics
c. Anticholinergics
d. Xanthine derivatives
FEEDBACK:
a. Phenothiazines are not used as bronchodilators.
b. Sympathomimetics (adrenergics) are potent bronchodilators that increase vital capacity and decrease airway resistance. .
c. Anticholinergics (parasympatholytics) achieve bronchodilation by decreasing the chemical that promotes bronchospasm. .
d. Xanthine derivatives relax the smooth muscle of the bronchial airways and pulmonary blood vessels, and may possess anti-inflammatory actions. .
e. Antihistamines are not a classification of bronchodilators.
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