During a bronchial provocation study, a patient has the following spirometric values after a 0.25 mg/mL dose of methacholine:
Based on these results, a pulmonary function technologist should
Instruct the patient to blow out longer and repeat the effort.
Stop the test and immediately administer a bronchodilaior.
Instruct the patient to blow out harder and repeat the effort.
Reduce the concentration of methacholine on the next trial.
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