<P><div class="FTQUOTE"><begin quote>Originally posted by: Printer Of course she could have 2 mutations even tho the others have only one. Barbara, what is the CF Doctor recommending? Bill</end quote></div> While anything is possible, the statistically odds of the two symptomatic patients not showing a mutation that is then found in the non-symptomatic sibling are astronomically small. Barbara, look at it this way: Either you or your husband have the mutation found in your boys. There is a 50% chance your daughter also has that one. The other parent either has a normal gene or one with an unknown mutation. There is a 50% chance she got that one as well. Therefore, the results of the test will be 50/50 that either she got the same gene as her brothers or not. If they want to run the test, there is no harm done, but it shouldn't change how they treat her. Without a clear diagnosis, you should always treat symptoms not a label</P>
<P>Just my .02 worth. </P>