'Reversible' obstruction?
Spirometry |
|||
| index | pre bronchodilator | post bronchodilator | predicted |
| FEV1 | 1.85 L | 2.02 L | 3.62 L |
| FVC | 4.70 L | 4.86 L | 4.77 L |
| FEV1%FVC | 39% | 42% | 75% |
Your reply |
You think the improvement signifies bronchodilatation. |
We’ll let you know in a minute whether the answer is correct or not. Let us first find out about your reasoning. You think of a bronchodilator effect because:
- Increase in FEV1 >9%
of the initial value.
- Both FEV1 and FEV1%FVC increased
appreciably.
- On second thoughts you
do not think there is convincing evidence for a bronchodilator
effect.
- You do not know the criteria
for assessing the bronchodilator effect.