I went in to begin the Denufasol drug study, but did not qualify. <img src="i/expressions/face-icon-small-sad.gif" border="0"> My FEV1 had dropped to 68 percent, even though I am feeling fine= no increased cough, no decrease in exercise tolerance. Anyway, my CF doc suggested that I get a tuneup to possibly qualify for the drug study later and just to catch it before it does become a problem. This will be the first time that I'm on IVs and not actually feeling really sick to begin with. So, I'm just curious about what percent of people get tuneups when they are not feeling sick.