CAH is an inherited genetic condition with 25% chance of occurance (recessive genes). Both parents have to carry the gene for your brother to have CAH and to pass the gene to you as a carrier. It is important for you and your wife to have genetic testing so you will know if YOUR children will have CAH. A carrier does not have any symptoms of CAH or does not have CAH. In the tab under the banner on this page is a link to Dr. Maria New's web page on genetic testing for CAH. I had genetic testing done after my son was born with CAH. The blood is taken locally and sent to Dr. Maria New's office in NYC (Cornell University) for DNA testing.

If you think you have symptoms of CAH... then you need 60-minute cortisol challenge test and chem 8 blood test (sodium level). First blood is taken before an injection (IV) of cortisol and then 60 minutes after. It is best to have it done between 6 and 8 am. I am sure you know what CAH symptoms are:

weight loss, crave salt, vomiting, back ache, darken skin, etc