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Breast-milk radioactivity after a Tc-99m DTPA aerosol/Tc-99m MAA lung study

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:6385409
Measurements were made of the concentration of Tc-99m activity in samples of breast milk following an administration of Tc-99m DTPA aerosol for a lung ventilation image and one of Tc-99m MAA for lung perfusion. The activity was 222 nCi/ml of milk (8.2 kBq/ml) at 2 hr after the MAA injection, and it was found to be excreted exponentially with an effective half-life of 4.6 hr. There was a small incorporation of Tc-99m into breast-milk protein. The authors conclude that the combined use of these two Tc-99m agents did not indicate the interruption of breast feeding beyond 24 hr after administration of the MAA, and that for an aerosol ventiliation study alone, breast feeding need not be interrupted for more than 4 hr after the test.
Research Organization:
Kent and Canterbury Hospital, England
OSTI ID:
6385409
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 25:10; ISSN JNMEA
Country of Publication:
United States
Language:
English

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