QuestionSBA
QuestionChoice
Idiopathic lung fibrosis is a restrictive lung disease so we would expect the FEV1/FVC ratio should be > 70%. The FEV1/FVC ratio for this answer choice is 72% which is suggestive of restrictive lung disease. However, in restrictive lung diseases, the total lung capacity of carbon monoxide (TLCO) is reduced due to the reduction in lung volume.
10001273
c
FEV1 2.1, FVC 3.2, TLCO increased
QuestionChoice
Idiopathic lung fibrosis is a restrictive lung disease so we would expect the FEV1/FVC ratio should be > 70%. This answer choice shows an FEV1/FVC ratio of 66% making it incorrect.
10001272
b
FEV1 2.1, FVC 3.2, TLCO increased
QuestionChoice
Idiopathic lung fibrosis is a restrictive lung disease so we would expect the FEV1/FVC ratio should be > 70%. The FEV1/FVC ratio for this answer choice is 86% which is suggestive of restrictive lung disease.  However, in restrictive lung diseases, the total lung capacity of carbon monoxide (TLCO) is reduced due to the reduction in lung volume.
10001274
d
FEV1 2.4, FVC 2.8, TLCO normal
QuestionChoice
The most likely diagnosis is idiopathic pulmonary fibrosis which is a restrictive lung disease. As a result, we would expect this patient's FEV1/FVC ratio to be above 70%. Indeed, her FEV1/FVC ratio is 83%. Her total lung capacity of carbon monoxide (TLCO) is reduced because there is a reduction in overall lung volume.
10001271
a
FEV1 2.5, FVC 3.0, TLCO reduced
QuestionChoice
Idiopathic lung fibrosis is a restrictive lung disease so we would expect the FEV1/FVC ratio should be > 70%. This answer choice shows an FEV1/ FVC ratio of 66% making it incorrect. Also, in restrictive lung diseases, the total lung capacity of carbon monoxide (TLCO) is reduced due to the reduction in lung volume.
10001275
e
FEV1 2.5, FVC 3.7, TLCO normal
Concept
Chapter
2693
3693
Pulmonary Fibrosis
Topic
132
Respiratory
12801
An 80-year-old female presents to her GP with a 2-month history of shortness of breath and dry cough.

On examination, her fingernails are clubbed and on auscultation of the lungs there are fine end-inspiratory crackles.

Based on the most likely diagnosis, which of the following spirometry findings is the patient most likely to have?
a