A nurse is teaching a client who is taking intranasal calcitonin to alternate nares daily when administering the medication. Which of the following adverse effects should the nurse expect to improve following the teaching?

A. Rhinitis (inflammation of the nasal passages) is a common side effect of intranasal calcitonin, and alternating nares can reduce this adverse effect. B. Esophagitis is a potential side effect with oral calcitonin but not typically with the intranasal form. C. Warmth of the face is not a common side effect related to calcitonin use. D. Dyspnea on exertion is not a common side effect of intranasal calcitonin.