You Have Just Given Your Patient a 0

Multiple Choice

You have just given your patient a 0.03 mg/ml dose of methacholine to assess for asthma. The subsequent forced vital capacity (FVC) shows no change. What should you do next?

A) Report to the physician that the patient does not have asthma.
B) Wait 1 hour and repeat the test at the same dose.
C) Have the patient return tomorrow to repeat the test.
D) Double the dose and repeat the FVC maneuver.