Which of the following is used for the diagnosis of asthma?
AMeasurement of tidal volume
BEnd expiratory flow rate
CTotal lung capacity
DFEV1
A 60-year-old male with COPD has FEV1 45% predicted, mMRC grade 2 dyspnea, and 2 exacerbations last year. Which GOLD category?
AGOLD A
BGOLD D
CGOLD B
DGOLD C
In patients with emphysematous bullae, total lung volume is best determined by?
ASpirometry
BAny of the above
CHelium dilution method
DPlethysmography
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