<div class="FTQUOTE"><begin quote><i>Originally posted by: <b>chantelfox</b></i>
ALL THIS TIME I thought it was <b><i>your
lung capacity</i></b> that was the number that was looked at (mine
is high 70%'s) </end quote></div>
This may sound silly, but how do you know what your lung capacity is?
Aren't PFT's used to determine degrees of restriction, obstruction, etc.
For example, if my FEV1 is 40% does that mean my lung capacity is 40% or just that I can only blow out 40% of what is predicted for females of my age/weight. What if I'm 'not doing it right' when I do PFT's, then this would be a misleading number.
Would something like a CT Scan determine what your lung capacity is & PFT determine what your lung function is or are these 2 terms one in the same?
See...I told you this may sound silly.
ALL THIS TIME I thought it was <b><i>your
lung capacity</i></b> that was the number that was looked at (mine
is high 70%'s) </end quote></div>
This may sound silly, but how do you know what your lung capacity is?
Aren't PFT's used to determine degrees of restriction, obstruction, etc.
For example, if my FEV1 is 40% does that mean my lung capacity is 40% or just that I can only blow out 40% of what is predicted for females of my age/weight. What if I'm 'not doing it right' when I do PFT's, then this would be a misleading number.
Would something like a CT Scan determine what your lung capacity is & PFT determine what your lung function is or are these 2 terms one in the same?
See...I told you this may sound silly.