Information in this record refers to the use of iodohippurate sodium I 125 (ortho-iodohippurate sodium I 125; I 125 OIH) as a kidney function diagnostic agent. International experts recommend nursing the infant just before administration of the radiopharmaceutical and interrupting breastfeeding for 12 to 18 hours after the dose.[1-3] 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.[1,4,5]
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.[6]