when i had my last CT scan,the nurse asked me if i had underwire in my bra,because i think that the metal can effect the scan.i wouldn't think that a tampon would effect it,but it doesen't hurt to ask.don't be embarrassed to ask.better to be safe than sorry.i mean,hey.were women.and most women have periods.most people know this and should understand it.and if they can't,tough for them!be proud to ask your womenly questions.he he.please reply with any comments or questions.
drs