The nurse is preparing a client with possible asthma for pulmonary function testing. Which of the following instructions should the nurse include in the teaching plan?

Question

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Bronchodilators are held before pulmonary function testing so that a baseline assessment of airway function can be determined. Testing is repeated after bronchodilator use to determine whether the decrease in lung function is reversible. There is no need for the client to be NPO. Oral corticosteroids also should be held before the examination and corticosteroids given 2 hours before the examination would be at a high level. Rescue medications (which are bronchodilators) would not be given until after the baseline pulmonary function was assessed.

The Nurse Is Preparing a Client with Possible Asthma for Pulmonary