Help smokers quit: Tell them their "lung age"
Perform spirometry on patients who smoke -- even if they're asymptomatic -- and show them their lung age that is, the average age of a nonsmoker with a forced expiratory volume at 1 second (FEV1) equal to theirs. Doing so can help patients kick the habit. Stength of recommendation: B: Based on a single well-done randomized controlled trial (RCT).
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