Thanks Jenn. Where did u read where it was present in CF sputum? Everything I have found is based on leg ulcers, urine, and endocarditis. I have seen where it said that it is rare as far as a human pathogen. I have no idea why I would be culturing it. Not sure where I would pick it up from. I'm careful and try to stay as germ-free as possible. The nurse told me the only things that can treat it is IVs, so naturally, that has me a little scared. My local Pulmo is treating the Staph with oral abx for 14 days and then doing another culture to see if the P. Mendocina is still there. If so, then we will do IVs. Honestly, I'm not to sure if that is a good game plan or not. I hate when I culture something new. It makes me nervous. I like to "know" my "enemy". Hopefully it is a one time thing. Do u know if it is something that continues to come back? I guess the good thing is I'm not really, really sick. I'm just slightly SOB (past 4hrs, but that is when I need a treatment anyway), increase fatigue, slight increase in cough/sputum production and decrease in my appetite (sp?). So far, no fever or loss of sleep due to coughing.