American Board of Internal Medicine (ABIM) Certification Practice Exam

How frequently should endoscopic screening for esophageal varices be repeated after band ligation?

1. Every month

2. Every 2 to 4 weeks

3. Every 6 months

4. Annually

The correct answer is: Every 2 to 4 weeks

Endoscopic screening for esophageal varices after band ligation is typically recommended to be repeated every 2 to 4 weeks until the varices are completely eradicated. This frequency is important because it allows for close monitoring of the esophageal varices, ensuring that any residual varices can be effectively treated in a timely manner. After the varices are eradicated, the interval can often be extended based on the individual patient's risk factors and clinical situation. However, during the initial treatment phase, the more frequent monitoring helps to prevent the complications associated with untreated varices, such as bleeding. The options suggesting monthly or longer intervals (like every 6 months or annually) do not align with the recommended approach for monitoring after band ligation, as they do not allow for the necessary frequent assessment and intervention that may be required in the early stages post-ligation.