In her article Breastfeeding and Cancer¹, Diane West, BA, IBCLC, writes that radiation from diagnostic procedures using x-rays, mamografias, ressonância magnética, and CT/CAT scans are all safe during lactation. While this kind of radiation does have the ability to mutate DNA in live cells, it does not collect in the milk and is therefore compatible with uninterrupted breastfeeding. Radiopaque e radiocontrast agents typically used in ductogram, CT/CAT, ressonância magnética, MIBI scan, or PET scan diagnostic tests are extremely inert and virtually unabsorbed when taken orally, so they do not pass into the milk and it is not necessary to interrupt breastfeeding when they are used. Additionally, O livro de respostas da amamentação² reports that nursing may safely resume immediately after X-rays. Lactating people who receive iodinated contrast or gadolinium can continue breastfeeding without interruption.³

Although the vast majority of circumstances do not require interruption of breastfeeding, certain exceptions do exist.⁴ More information on the safety of radiocontrast dyes can be found in Thomas Hale’s Medications and Mothers Milk.^{5 6} Radioactive isótopos are not safe while breastfeeding, and breastfeeding should be temporarily interrupted when having a procedure requiring these isotopes. Generally, a short interruption of breastfeeding is necessary and a baby should be fed previously pumped milk.⁷

Por favor divulgar any diagnostic scans you may undergo to a recipient family in order to allow for their full informed choice process.

For more information also see the sectionMedicamento.

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1. Oeste, D. BA, IBCLC, Aleitamento Materno e Câncer, Amamentação hoje, Questão 10, 2011 ↩︎
2. Mohrbacher and Stock. 2003. O livro de respostas da amamentação. Imprimir ↩︎
3. University of California – UCSF Department of Radiology ↩︎
4. Katrina B. Mitchell. 2019. Protocolo Clínico ABM #31: Estudos de radiologia e medicina nuclear em mulheres lactantes ↩︎
5. Hale TW. Medications and Mothers Milk. 15ª Edição. Amarillo, Texas: Hale Publishing; 2012 ↩︎
6. A list of generic names for contrast dyes and radiopaque agents can be found here and this 2011 poster as well. Kay Hoover, M Ed., IBCLC. 2011. Agentes de radiocontraste e amamentação ↩︎
7. Mohrbacher and Stock. 2003. O livro de respostas da amamentação. Imprimir ↩︎