QUANTIFICATION OF GA-67-CITRATE IN BREAST-MILK

A woman, 6 months postpartum and nursing her child, had a Ga-67 scinti gram. A sample of breast milk obtained at day 2 revealed 2.8% of the i njected dose (ID) per liter. The percent ID/L was compared with litera ture values; the highest concentration was in a report of galactorrhea . Similarity of the gallate ion to phosphate, as a possible explanatio n for accumulation in the breast, was pointed out. An earlier recommen dation that a patient given Ga-67 citrate should discontinue breast fe eding for at least 2 weeks was re-examined.