Which of the following is a potential side effect of albuterol?

Albuterol is a bronchodilator commonly used to treat asthma and other conditions that cause bronchospasm. One of the known side effects of albuterol is headache. This occurs as a result of its action on beta-adrenergic receptors, which can lead to increased heart rate, blood flow, and changes in vascular tone, potentially resulting in a headache.

While other options like nausea, hypotension, and confusion can be associated with different drugs or situations, they are not as commonly linked to albuterol. Nausea may occur but is less frequent, hypotension is not a primary concern with albuterol use (it more often causes tachycardia), and confusion is not a typical side effect associated with albuterol. Therefore, headache is the primary side effect to consider when assessing the effects of albuterol treatment.