Doctors' knowledge of the doses and risks of radiological investigations performed in the emergency department.

Objectives: To assess emergency doctors' knowledge of radiation exposure doses and risks, and the increasing use of radiological investigations in emergency medicine practice is very concerning because of the associated risks of cancer.

Methods: Doctors from different specialties and with different levels of training working in emergency departments of 8 hospitals in Jeddah, Kingdom of Saudi Arabia, filled out a questionnaire. Participants estimated the radiation doses of different imaging modalities and answered questions regarding possible associated risks.