Which of the following symptoms is associated with excessive doses of beta 2 agonists?

In the context of excessive doses of beta 2 agonists, hypertension is a relevant symptom due to the mechanism of action these medications have on the cardiovascular system. Beta 2 agonists primarily target the beta 2 adrenergic receptors, which are found in the smooth muscles of the airway, leading to bronchodilation. However, at high doses, these medications can also stimulate beta 1 adrenergic receptors, which are primarily located in the heart. This can result in increased heart rate and cardiac output, often leading to elevated blood pressure.

Beta 2 agonists can cause peripheral vasodilation, but this is generally countered by the reflexive increase in heart rate and myocardial contractility, leading to an overall rise in blood pressure in cases of overdose. Therefore, hypertension stands out as a significant symptom that can arise from the excessive use of these drugs.

Comparatively, hypotension, bradycardia, and dehydration are not typically associated symptoms of beta 2 agonist overdose. Hypotension is more often linked with vascular dilation without compensatory mechanisms, bradycardia is characterized by a slowed heart rate which contradicts the expected tachycardia from adrenergic stimulation, and dehydration does not directly connect to the pharmac