title: Uptake of 67Ga in the lactating breast and its persistence in milk: case report.
abstract: The concentration of 67Ga in the milk of a postpartum woman was measured at intervals up to 8 days after the injection of 3 mCi of 67Ga-citrate. The 67Ga concentration was about 0.15 muCi/ml at 3 days after injection and fell to 0.035 muCi/ml by 8 days. Since the biologic clearance of gallium was slow (T1/2 approximately 9 days), the major determinant of the clearance of radioactivity was the physical decay of the gallium. An estimate of the radiation dose to a nursing infant suggests that nursing be interrupted for about 2 weeks after the mother has had a 67Ga study.
mesh_terms: D005260:Female; D005710:Gallium Radioisotopes / Q000032:analysis; D006801:Humans; D007231:Infant, Newborn; D007774:Lactation; D008895:Milk, Human / Q000032:analysis*; D011247:Pregnancy; D011829:Radiation Dosage; D011877:Radionuclide Imaging / Q000009:adverse effects*
chemical_list: D005710:Gallium Radioisotopes