If you suspect it, demand a sweat test. It's for your son's health. If you think a sweat test is warranted (and I tend to agree from what you've said), demand that they set up a sweat test for him. If your doctor won't help you set up a test, go to another. One thing we learn from being so involved in the medical community, is to never take no for an answer, and always question question question! Doctors can be smart, but they're people and make mistakes. If they try to give you any phony baloney about no family history or blah blah blah, don't buy it. I was the first, and am still the only CFer in a very large extended family.
Just one piece of advice we extend to all parents having their kids sweat tested... make sure the place he's getting tested is an accredited CF care center. Doctors can be as smart as they want, but if they're not specialized in CF, they VERY OFTEN either perform the test or read the results (or both) incorrectly. You can find a CF center near you at the following website:
<a target=new class=ftalternatingbarlinklarge href="http://www.cff.org/chapters_and_care_centers/
">http://www.cff.org/chapters_and_care_centers/
</a>
Good luck. <img src="i/expressions/rose.gif" border="0">
