title: Ionizing radiation during pregnancy.
abstract: OBJECTIVE
  One of my patients had a computed tomography scan of her abdomen a week ago and has just found out she is 7 weeks pregnant. What should I tell her about the pregnancy and the risk to her fetus?
  
  
  CONCLUSIONS
  Your patient is not at increased risk of miscarriage or major congenital fetal malformations due to radiation exposure. Her risk is similar to that of the general population (ie, 1% to 3%).
authors.affiliation: Hospital for Sick Children, Toronto, Ont.
authors.forename: Savithiri
authors.initials: S
authors.lastname: Ratnapalan
authors.forename: Nicole
authors.initials: N
authors.lastname: Bona
authors.forename: Gideon
authors.initials: G
authors.lastname: Koren
mesh_terms: D000328:Adult; D000013:Congenital Abnormalities / Q000209:etiology; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology; D009369:Neoplasms / Q000209:etiology; D017410:Practice Guidelines as Topic; D011247:Pregnancy; D011248:Pregnancy Complications; D011832:Radiation Injuries; D011859:Radiography / Q000009:adverse effects*; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed / Q000009:adverse effects*