Hi Marie.
I am so sorry to hear that Lara has been diagnosed afterall. I remember the shot to the gut it was to hear those words about my daughter, Alyssa.
Alyssa has one very rare mutation (only 6 people ever diagnosed with it) and a more common one. I was really caught up on this fact in the beginning. It made me feel like there was a much greater sense of hope, and that maybe her CF wouldn't be "real" CF. I have since come to terms with two facts...1. the mutation combinations don't necessarily have much to do with the way CF plays out and 2. CF is CF, if you are diagnosed with it and have to do all the preventative treatment for it, you are living the CF life regardless of how quickly the symptoms progress.
BUT, that being said, there are lots of reasons to maintain your sense of hope here. Better medicines and treatments continue to be found and the future for our children being diagnosed today is profoundly better than the outlook was twenty years ago.
The first CF team meeting can be quite overwhelming. Take a notebook and a partner with you. You will be meeting with so many people: pulmonologist, GI, respiratory therapist (or physical therapist), nutritionist, geneticist, and social worker. Pull your head together as best you can, but they will help you through the process.
I did a quick search on the r75q sequence variation for you. The results are <a target=_blank class=ftalternatingbarlinklarge href="http://www.genet.sickkids.on.ca/cftr/MutationDetailPage.external?sp=1004">here.</a>
If you hit the link to the PubMed articles it will show you that there have been many articles published regarding r75q. I am suspecting its not as rare as you have been told. My daughter's rare mutation has NO articles published on it.
Anyway, I did a quick scan of the articles and it seems like there seems to be a relationship to this mutation and folks who develop COPD (Chronic Obstructive Pulmonary Disorders). I'm not exactly sure what that means to your daughter, but my guess is that it would make them anticipate lung involvement. I would imagine that starting Chest Physical Therapy would probably be primary on your approach here.
Surely there are others around here that have a better understanding of this all than I. But I wanted to jump in and let you know that you aren't alone in all of this. Hang in there!!!