Prior to undergoing an abdominal sonogram, the patient should do what?

For an abdominal sonogram, it is recommended that patients drink a significant amount of water before the procedure. The rationale behind this is that having a full bladder provides better visibility of the pelvic organs and structures. When the bladder is full, it can help to displace bowel gas, which may obscure the view of the abdominal organs during imaging.

In some cases, a liquid diet might also be suggested. However, the emphasis is really on ensuring that the bladder is adequately distended for optimal imaging results. Therefore, drinking a liter of water, as indicated in the correct choice, is essential preparation for an abdominal sonogram. This is a standard practice that can enhance the quality of the ultrasound results, making it clearer for the interpreting physician.