CAMRT Radiography Practice Exam

Which patient position increases peristaltic motion for stomach emptying?

1. Supine

2. Trendelenburg

3. RAO

4. Prone

The correct answer is: RAO

The right anterior oblique (RAO) position is effective in increasing peristaltic motion for stomach emptying primarily due to its anatomical orientation. In this position, the stomach is angled in such a way that gravity assists the movement of food and digestive contents from the stomach into the duodenum. Additionally, the RAO position can enhance the contractility of the gastric walls, facilitating more efficient digestive processes. In contrast, when a patient is in the supine position, the effects of gravity are minimized, which can slow gastric emptying. The Trendelenburg position, where the patient is laid back with the legs elevated above the head, may also hinder normal stomach motility and gastric functions due to its effect on the anatomical alignment of the gastrointestinal tract. Finally, the prone position can create unwanted pressure on the abdomen, resulting in decreased peristalsis and an impediment to the natural flow of contents from the stomach. Thus, the RAO position stands out as the one that effectively supports increased peristaltic motion for improved stomach emptying.