Diagnostic x-ray is a frequent source of patient anxiety in pregnancy.

It is important to note that:

1. No single diagnostic x-ray procedure is enough to threaten the well being of the embryo or fetus.
2. Risk of fetal anomalies, growth restriction spontaneous abortion are not increased at exposure level of <5 rads.
3. MRI and ultrasound are safe in all stages of pregnancy.
4. Radio opaque and paramagnetic contrast agents are unlikely to cause harm; but should be used only when the benefit justifies the potential risk to the fetus.
5. Use of radio-active isotopes of iodine is contraindicated in pregnancy.