Maria, out of curiosity, do you know what samantha's mutations are? If so, I am sure you already know that you older children could be genetic tested (providing they have the same biological fathers) against samantha's mutations. If her mutations have not been identified, in the past I would have recommended ambry genetics-BUT.... I recently learned that Quest diagnostics (a well known, reputable laboratory) also has a CF mutations test that is comprable, if not better than Ambrys. Additionally, Quest Diagnostics is known by doctors as well as insurance companies and you might have better luck doing genetic testing through quest. Just an idea/recommendation.
I inquired with Quest diagnostics so I could update/eliminate inaccurate information from my CF infertility website (www.cysticfibrosismaleinfertility.com) and this is the response that they gave me. I specifically requested they tell me how theirs differs from Ambry, so they didn't just "bad talk them" for no reason, I asked for the comparison.
<i>The Medical Director of the Genetic Testing Center at Quest Diagnostics
Nichols Institute was able to respond back to your inquiry regarding testing for
Cystic Fibrosis Carrier/Diagnostic testing.
He responded back by stating "the ambry test is called gene scanning and is a
crude way of scanning the entire gene for the presence of any mutation. Once a
potential fragment has been determined to have a potential mutation, that
fragment is sequenced. Ambry calls their test a "sequence based test" but it is
not a DNA sequencing test."
"Quest Diagnostics offers CF Complete which is a complete sequencing of the
entire CF gene. Coupled with our new deletion CF test, we would detect >99% of
all CF mutations."
Thank you once again for contacting Quest Diagnostics.
Sincerely,
Iris Underwood
Branch Operations Manager
Quest Diagnostics San Diego
Tel: 619-686-3053
Fax: 619-686-3362
e-mail: Iris.J.Underwood@questdiagnostics.com
</i>
I hope this information helps anyone who is interested