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» What is the ten-day rule and what is its status? It is important for radiology facilities to have procedures to determine the pregnancy status of female patients of reproductive age before any radiological procedure that could result in a significant dose to the embryo or fetus.
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The 10-day rule was established by the International Commission on Radiological Protection to minimize the potential for performing x-ray exams on pregnant women. The basis of the rule was to do abdominal and pelvic x-ray exams only during the 10 days following the onset of menstruation.
The Health Protection Agency provides practical advice regarding the 10-day rule for what are classified as high-dose examinations.3 These are investigations resulting in doses to the uterus of ‘some tens of milligray’.
22 Απρ 1995 · The “10 day rule” recommended that, in women of child-bearing potential, non-urgent x ray examinations that entailed pelvic irradiation should be restricted to the first 10 days of the menstrual cycle. Its rationale was to avoid irradiating a fetus before the mother realised that she was pregnant.
10 day rule should be applied4. In practice this means that abdominal or pelvic CT and some barium studies should be scheduled in the first 10 days of their menstrual cycle. This timing refers to patients with a regular 28 day cycle and should be scaled according to cycle length.
higher dose examinations on all potentially pregnant women to the first ten days of their menstrual cycle when conception is very unlikely to have occurred (the so-called ten-day rule)....
The former concept of the ‘10-day rule’ (which means that whenever possible, one should confine the radiological examination of the lower abdomen and pelvis to the 10-day interval following the onset of menstruation) has been considered obsolete for several years.
