Theophylline has a diuretic effect that can cause dehydration in the patient with asthma. Therefore, the nurse strictly monitors intake and output to ensure the patient stays adequately hydrated. Worsening narrow angle glaucoma and anxiety can occur with anticholinergic bronchodilators. The nurse would request the patient to report eye pain and light haloes and encourage the patient to practice meditation and positive thinking for this medication. Hypokalemia is associated with beta-agonists; an appropriate nursing intervention for this medication is daily serum electrolyte levels.