My onc wants to schedule a CT scan. He didn't find much evidence of nodes on physical examination. My platelet count is borderline concern, eg some slight change in a bad way. Rest of numbers are ok other than the usual slight rise in counts. No night sweats and just the usual tiredness, but that's even better since I've recently retired. I'm concerned about unnecessary chemicals and radiation, as well as the expense even with Medicare and supplemental insurance. He says that this way we'll know if there are any nodes he can't feel pushing on organs. He said that if my kidneys are being stressed that's not good and would affect treatment later on if my kidneys are damaged. Wouldn't I have some kind of symptom if my kidneys were involved? Surely my platelet count isn't affected by kidney function. I feel pretty good, so why is he so excited all of a sudden to do a CT scan? I would appreciate any advice on what questions to ask so that I can be more comfortable with this proposed test.