Are a form of electromagnetic radiation similar to light, but with a shorter wavelength. X -rays are present only during the time that the image is being taken and leave no radiation or radioactivity in the body or in milk.
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You’re constantly worried about the safety of your baby whileyou’re pregnant, but the list of dos and don’ts doesn’t end once you’re postpartum, especially if you’re breastfeeding. Once my daughter had the hang of nursing, I worried constantly that something would mess up my milk or affect her.
The Academy of American Pediatrics writes that when using dominated contrast or gadolinium, about 0.04 perfect of the intravenous dose reaches human milk. Of course, if you feel more comfortable holding off on non-urgent screenings till you’re done nursing that’s more than OK. Just know your dentist probably won’t buy the breastfeeding excuse when you try to get out of your yearly appointment.
Before I went to the pharmacy, I checked with my action consultant, and she advised me to not take it (new medicine and unknown what's transmitted to the baby via breast milk). My doctor told me I'd need to pump, because you don't want to give the baby irradiated milk.
Sorry I can 't remember the precise details, but I can assure you that my LC (Lactation Consultant) said that x -rays are safe to have done while you are breastfeeding. I think she said something about how the level of exposure is low enough to be negligible, especially if they use that bib thing.
In anticipation of this, she may wish to use a breast pump to obtain milk before the contrast study to feed the infant during the 24-hour period following the examination. For all breast-feeding patients who are scheduled for Nuclear Medicine exams and/or procedures, the DR attending physician must be consulted prior to any testing performed.
Patients who have a Tc-99 m nuclear medicine procedure should not let their infants’ breastfeed for 72 hours after the exam. The patient only needs to pump and store the breast milk for 72 hours after the exam has been completed.
Immediately following the exam, the patient should continue to pump the breast milk for 72 hours and properly stored so that the isotope has time to decay prior to giving it to the infant. For other radioisotopes, consult with the NM attending physician or RSO regarding appropriate waiting period before resuming breast-feeding or using stored breast milk.
This article shares useful resources to discuss with your health professionals regarding the compatibility of various diagnostic tests while breastfeeding. The Academy of Breastfeeding Medicine (ABM) Protocol #30 1 refers to guidelines from The American College of Radiology (ACR) 2 that say all breast imaging studies and biopsies are safe for breastfeeding women.
Dr Jack Newman, a Canadian pediatrician and breastfeeding expert, states that it is not necessary to wean prior to diagnostic tests on the breast. If there is urgency in making a diagnosis, waiting for the mother’s milk to dry up is not rational, since it may take several weeks.
Ultrasound helps distinguish between fluid filled (cystic) and solid masses by high frequency sound waves used to see inside the breast. MRI scans use strong magnetic fields and radio waves to produce clear pictures of the inside of the body.
Excerpt from Although MRI is less sensitive in the setting of lactation due to increased parenchymal density and vascularity, it nevertheless is not contraindicated and may provide diagnostic and treatment planning benefit. Excerpt from ACR Appropriateness Criteria® Breast Imaging of Pregnant and Lactating Women.
13 Manufacturers’ package inserts may say that breastfeeding is not recommended for 24 hours after use 14, however several authorities on the subject suggest this is not necessary: Salesmen online explains that Gadolinium has a short half-life (1.6 hours), is poorly absorbed orally by the mother and only reaches breast milk in incredibly low levels therefore 24 hours interruption of breastfeeding seems extreme.
2020 Recommendation Because of the very small percentage of gadolinium-based contrast medium that is excreted into the breast milk and absorbed by the infant’s gut, we believe that the available data suggest that it is safe for the mother and infant to continue breast-feeding after receiving such an agent. Wendy Jones, UK pharmacist and author, has reviewed the evidence and concludes MRI scans are compatible with breastfeeding with or without gadolinium, and she cites guidelines from The Royal Australian and New Zealand College of Radiologists (RAN ZCR) 15 16.
Core needle biopsy after a full image work-up is the preferred diagnostic procedure for a breast lump. A fistula tends to be a complication arising from a biopsy, abscess or surgical procedure on a lactating breast.
Excerpt from An important factor in preventing a fistula is to continue breastfeeding on that breast. If the mother doesn’t, the milk is likely to find the path of the least resistance to flow, which may be this relatively large opening .
If the mother does not want to stop breastfeeding on that side and can tolerate the leaking, there is no harm in leaving the fistula. In this situation using medication to reduce milk supply would affect both breasts so is best avoided.
Excerpt from Dominated Contrast Media Guideline V2.3, The Royal Australian and New Zealand College of Radiologists (RAN ZCR), 2018 Cessation of breastfeeding or expression and discarding of breast milk after dominated contrast media administration are not required Breastfeeding and the Use of Contrast Dyes for Maternal Tests, Clinical Lactation, 2011, by Kay Hoover IBC LC.
Intravenous pyelogram (MVP) is another type of Ray using a contrast medium that helps the radiologist check the health of the kidneys, ureters and the bladder. In Cancer and Breastfeeding (Breastfeeding Today, LL LI, 2015), Diana West, IBC LC answers the most commonly asked questions breastfeeding mothers have when faced with testing and treatment for cancer including; imaging techniques, needle aspiration, biopsy, radioactive isotopes, radiation therapy, chemotherapy and anesthesia.
Excerpt from Imaging techniques used for diagnosis of pathology (such as ultrasound, mammogram, magnetic resonance imaging (MRI), positron emission tomography (PET) scan, 2-Methoxy Isobutyl Isonitrile (MINI) scan, electrical impedance tomography (EIT) scan, computed tomography (CT) scan/computer axial tomography (CAT) scan, thermographic, or diaphanography) are non-invasive and do not affect milk production or safety. It may be more difficult to interpret breast tissue results due to the increased density from lactation, but it is not impossible.
Breastfeeding during chemotherapy is absolutely contraindicated because the medications used to eradicate cancer are highly toxic and transfer into milk. Breastfeeding after chemotherapy has been completed may be possible, either by relactation or as a result of another pregnancy, depending upon the drugs that were used.
Radioisotopes may require stopping breastfeeding for a short time to avoid exposing a baby to excess radioactive material. The period of interruption will depend on the type of radioactive substance used, and the dosage and age of your baby.
The mother will need to pump regularly during any interval to avoid mastitis or a drop in her milk supply. If a mother has sufficient expressed breast milk already stored prior to the test, this can be fed to her baby during this waiting period.
See below for information on whether the milk pumped during the break in breastfeeding can be used after a waiting time or whether it should be thrown away. Exposing a baby to this breast milk could affect their own thyroid gland function or future risk of thyroid cancer and increase the mother’s radiation exposure in the breast tissue.
26 Inside Radiology recommends interrupting breastfeeding for 24 hours after this type of scan: Whether 24 hours is required in all cases may depend on the radioisotope used during the test and the protocols in place at individual hospitals.
In Use of Radioisotopes (and Other Imaging Agents) During Lactation Kelly Sonata explains that as a general rule breast milk stored in the waiting period after a diagnostic test with a radioisotope can be used after five half lives have passed: Technetium 99M In Breastfeeding and Radioactivity, lactation online conference 2013, Veronica Area, Head of the Department of Safety and Environmental Impact (INVAR), stated that the preferred radioisotope for a breastfeeding mother is Technetium 99 metastable (Tc99m).
HalesMeds.com discuss that although the radioactive half-life of Tc-99 m is fixed at six hours the time needed to stop breastfeeding or store breast milk may be less than 30 hours (five half lives) as it will depend on which formulation of Tc-99 m is used and recommendations can also vary between advisory bodies. Interrupt breastfeeding as directed by the medical team to give time for the radioactivity to reduce to an acceptable level.
X -rays, MRIs, CT scans, Intravenous Pyelogram (MVP), ultrasound and mammograms do not affect breast milk. Radioisotopes however, may require interrupting breastfeeding for a short time to avoid exposing a baby to excess radioactive material.