Is Technetium Tc 99m Dextran Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Technetium Tc 99m Dextran? Is Technetium Tc 99m Dextran safe for nursing mother and child? Does Technetium Tc 99m Dextran extracts into breast milk? Does Technetium Tc 99m Dextran has any long term or short term side effects on infants? Can Technetium Tc 99m Dextran influence milk supply or can Technetium Tc 99m Dextran decrease milk supply in lactating mothers?

Information in this record refers to the use of technetium Tc 99m dextran as a diagnostic agent. No information is available on the use of technetium Tc 99m dextran during breastfeeding. The mother should withhold breastfeeding for 60 hours after a diagnostic dose. This length of time is 10 half-lives of the radioisotope, so the nursing infant should not be exposed to radiation if this guideline is followed. The mother can nurse just before administration of the radiopharmaceutical. If the mother has expressed and saved milk prior to the examination, she can feed it to the infant during the period of nursing interruption.[1][2][3] Mothers concerned about the level of radioactivity in their milk could ask to have it tested at a nuclear medicine facility at their hospital. When the radioactivity is at a safe level she may resume breastfeeding. A method for measuring milk radioactivity and determining the time when a mother can safely resume breastfeeding has been published.[4] For nursing mothers who work with Tc 99m substances in their workplace, there is no need to take any precautions other than those appropriate for general radiation protection.[5]