Drinking alcohol | 4 h |
Eating a large meal | 2 h |
Vigorous exercise | 30 min |
Smoking | >1 h |
Medication use | Document treatment and when last taken |
For reversibility testing | |
Taking short-acting bronchodilators | 6 h |
Taking long-acting bronchodilators (including combination inhalers) or twice-daily preparations | 24 h |
Taking tiotropium or once-daily preparations | 48 h |