Restrictive lung disease?
Your reply |
In your opinion restrictive lung disease is present if a low (F)VC is accompanied by a normal FEV1/FVC ratio. |
| Thank you; let us explore your views by analyzing the expanded data set. | |
- Caucasian male, age 54 yr, standing height 159 cm, non-smoker.
- breathless on exercise
- shortness of breath on exercise
- no wheezing, no chronic cough or phlegm.
Spirometry |
||||
index |
observed |
post bronchodilator |
predicted |
lower limit |
FEV1 |
1.84 L |
2.13 |
3.00 L |
2.13 L |
FVC |
2.13 L |
2.81 |
3.75 L |
2.68 L |
FEV1%FVC |
69% |
76% |
78% |
66% |
Click on the appropriate alternative:
- FVC too small,
FEV1/FVC ratio normal,
hence restriction
- FEV1 and FVC too small, FEV1/FVC
ratio normal, hence restriction
- FEV1 too small, FVC and FEV1/FVC
ratio within normal range, hence restriction