I will be working in medical pulmonary floor soon. During physical exam, they did a pulmonary function test and found my result was quite low - borderline low. The RT even have me redo it 3 times just to make sure. The doctor told me I should be fine but may have trouble if there's a need to wear N95 mask.
I can see his concern, because when I wear a regular mask I normally try to make it looser as I sometimes do get light headed when it's too fit.
I've never wore a N95 mask before, and am concerned if I just won't be able to do it if I have to care for a TB patient. If that really is the case, would I have to quit my job? should I mention it to my manager in advance?