Welcome Ambry Genetics
There are many things you can do, i'm 15 and have CF and attend main stream school. Home tutoring is an option, i had that when i was in my first year of high school cause i was really ill, but as i seem to get older i seem to adapt to a normal life i am still ill but i love coming to school everybody's great! if you are worrired about your sister missing out see what you can do either by asking her doctor or even asking other people with CF and see what they would advise Eveybody's different. Hope this helps!!
Hannah Wilson
United Kingdom ,Wales