Does anyone have any idea how often a "CF diagnosis" is made after rectal blockage on an ultra-sound is found? I realize I'm not on a physician board, but I'm wondering if this is a fairly common way to find a CF diagnosis. A friend just today mentioned that her OB/GYN wanted to do CF testing because of bowel blockage. Just thought I'd pick your brains... <img src="i/expressions/face-icon-small-smile.gif" border="0"> Thanks a bunch, Carey