A nurse is reinforcing teaching with the guardian of a school-age child who has asthma. Which of the following instructions should the nurse include in the teaching?

A. Children with asthma are at an increased risk for respiratory infections, including pneumococcal infections. Therefore, pneumococcal immunization is recommended for children with asthma to help prevent pneumonia and other infections. B. Salmeterol is a long-acting beta-agonist used for asthma maintenance and not for acute exacerbations. The nurse should instruct the guardian to use a quick-relief bronchodilator (e.g., albuterol) for acute symptoms. C. When using a peak flow meter, the child should inhale as deeply as possible, but the exhalation should be long and forceful. Inhaling quickly may not give an accurate reading of lung function. D. Physical activity and sports are important for children with asthma, as long as their asthma is well controlled. The nurse should not recommend avoiding school sports unless the child has an active exacerbation or poor asthma control.