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AAPM has contracted with NCRP to provide each AAPM Member in good standing access and download privileges of electronically available NCRP reports, commentaries and statements. This report was prepared by the National Council on Radiation Protection and Measurements (NCRP). The Council strives to provide accurate, complete and useful information in its reports. However, neither the NCRP, the members of NCRP, other persons contributing to or assisting in the preparation of this report, nor any person acting on the behalf of any of these parties (a) makes any warranty or representation, express or implied, with respect to the accuracy, completeness or usefulness of the information contained in this report, or that the use of any information, method or process disclosed in this report may not infringe on privately owned rights; or (b) assumes any liability with respect to the use of, or for damages resulting from the use of, any information, method or process disclosed in this report.

Report No. 054 - Medical Radiation Exposure of Pregnant and Potentially Pregnant Women (1977) This is a members only link.

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It can be stated that no radiologic examination should be carried out unless there is a significant medical need for such examination at that time. It may also be stated that no radiological examination for which there is a significant medical need should be denied a patient, even if she is pregnant, for the risk to the patient of not having an indicated examination is also an indirect health risk to the embryo-fetus. However, there may be exceptions to this general thesis. The need for radiological examinations covers the entire spectrum of necessity, and health practitioners may, and often do, disagree as to the importance of a given examination in a given situation. There is presumably a radiation dose level below which most experts would agree that the risk of any radiation injury from a radiological examination (such as a routine chest x ray) is so small that it would be offset by any slight medical benefit. There is also a level, presumably, above which the risk of the radiological procedure is so great that it should not be carried out except to counteract a life-threatening situation (such as the radiation treatment of cancer). Individual experts will differ if asked to numerically define these levels, and they may draw different conclusions in trying to compare the risks with the benefits in a given situation because both are so often nonquantifiable or at least illdefined. NCRP recognizes that any general recommendation it makes regarding the medical radiation exposure of women having child-bearing capacity can serve only as a guide that may be modified in specific instances according to the judgment of the patient's physician and the consulting expert.
Scientific Commmittee:
Robert O. Gorson, Chairman

Robert L. Brent
Robert D. Moseley, Jr.,
Liane B. Russell
James Wilson
George W. Casarett, Consultant
Lauriston S. Taylor, Consultant
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