An adult patient with asthma is receiving Albuterol by small volume nebulizer Q.I.D. at a dosage of 0.5 mL. The patient complains of dizziness, tingling in his fingers, and anxiety with each treatment. The therapist should

a) Switch to a different bronchodilator
b) Decrease the dosage of Albuterol
c) Administer oxygen therapy
d) Monitor the patient for side effects