Chest x-ray and plain abdominal radiography are widely used in the daily practice of the emergency physician. The concept of « Choosing Wisely » implies a more efficient medicine that encourages, among other things, the avoidance of investigations that do not have a significant impact on the therapeutic management of patient. In this context, indications for these two imaging examinations were reviewed, whether in the context of a consultation in the emergency department, a hospital admission or a preoperative check-up.