I just sent this to a mom yesterday: Just to reiterate what my sources say about Tc-99m DISIDA: THE BREASTFEEDING ANSWER BOOK: "Interruption of breastfeeding not recommended" pg. 611 MEDICATIONS AND MOTHERS' MILK 2010 by Hale: "Use the shortest half-life product permitted such as Technetium 99m. Its half-life is so short, and its radioactive emissions are so weak, that it poses little risk (but this depends on dose). While the table below often does not even require interrupting breastfeeding, I still suggest that waiting even 12-24 hours before breastfeeding would virtually eliminate all possible risks associated with this isotope." Pg. 1118. Here's another article that may be useful as you make your decision: http://www.acr.org/MainMenuCategories/about_us/committees/gpr-srp/AdministrationofContrastMediumtoNursingMothersDoc1.aspx Excerpt from above link: "Mothers who are breast-feeding should be given the opportunity to make an informed decision as to whether to continue breast-feeding or temporarily abstain from breast-feeding after receiving intravascularly administered iodinated contrast medium. Because of the very small percentage of iodinated contrast medium that is excreted into the breast milk and absorbed by the infant's gut, we believe that the available data suggest that it is safe for the mother and infant to continue breast feeding after receiving such an agent. If the mother remains concerned about any potential ill effects to the infant, she may abstain from breast-feeding for 24 hours with active expression and discarding of breast milk from both breasts during that period. In anticipation of this, she may wish to use a breast pump to obtain milk before the contrast study to feed the infant during the 24-hour period following the examination." HTH, Jessica Claire LLL leader in Los Angeles *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html To reach list owners: [log in to unmask] Mail all list management commands to: [log in to unmask] COMMANDS: 1. To temporarily stop your subscription write in the body of an email: set lactnet nomail 2. To start it again: set lactnet mail 3. To unsubscribe: unsubscribe lactnet 4. To get a comprehensive list of rules and directions: get lactnet welcome