Breastfeeding and radiologic procedures.

QUESTION: Recently, some of my patients were instructed not to breastfeed for 24 to 48 hours after magnetic resonance imaging scans. Is this based on scientific evidence? ANSWER: No. On the contrary, evidence indicates unequivocally that the contrast media used for both magnetic resonance imaging and computed tomography scans are excreted into breast milk in such small quantities that there is no concern at all for nursing babies.