A Subject Whose FEV₁ Is 1

Multiple Choice

A subject whose FEV₁ is 1.1 L has the following results of an exercise test (values in parentheses are percents of predicted) : Which best describes these results?

A) Mild exercise impairment,poor effort
B) Moderate exercise impairment,probably deconditioning
C) Severe exercise impairment with cardiovascular limitation
D) Moderate to severe exercise impairment with ventilatory limitation