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?

Question

Quizplus · Accepted Answer

Doubling the dose and repeating the FVC maneuver is the correct next step in a methacholine challenge test if the initial dose does not elicit a significant change in lung function. This test involves administering increasing doses of methacholine to assess airway hyperreactivity, a hallmark of asthma.

You Have Just Given Your Patient a 0