sarabeth87
New member
Okay, so I have an FEV1 of around 65% and my brother's is about 40%. Our new CF friend we met said his is around 13%. He's on oxygen and is very skinny, but he's still up doing things. We even went 4-wheeler riding today and he didn't wear his O2 the entire time. In fact we hung out about 4 hrs before he finally put it on. Is it possible that he's wrong about what is FEV1 is or is it possible for it to be that low and still be relatively active?