Question

which of the following is one of the major side effects of adrenergic or sympathomimetic bronchodilators? hypotension lethargy low blood sugar tachycardia

Explanation:

Adrenergic or sympathomimetic bronchodilators act on the sympathetic nervous system. Sympathomimetics can stimulate beta - adrenergic receptors in the heart, leading to an increase in heart rate. Hypotension is not a major side effect (they usually cause hypertension or no significant hypotension). Lethargy is not a typical side effect as these drugs are stimulatory. Low blood sugar is also not a major side effect; in fact, they may increase blood sugar. Tachycardia (increased heart rate) is a common major side effect due to the stimulatory effect on the heart's beta - receptors.

Answer:

Tachycardia