Question

Return-flow enemas are administered to expel flatus. They involve instilling a large volume of fluid in small increments, usually 100 to 200 mL at a time, into the rectum and the sigmoid colon to stimulate peristalsis. After instilling the solution, lower the container to allow the solution to flow back into the container. Repeat the process several times until the patient expels flatus and abdominal distention is relieved.

Answer 1

Return-flow enemas are utilized to stimulate peristalsis in the colon and alleviate flatus, which is intestinal gas accumulated due to bacterial fermentation of undigested carbohydrates.

Step-by-step explanation:

Return-flow enemas are procedures intended to help eliminate flatus, which is gas that accumulates in the digestive tract, notably within the colon. These enemas work by inserting increments of liquid, typically between 100 to 200 mL, into the rectum and sigmoid colon to stimulate peristalsis, the wave-like muscle contractions that move content through the intestine. This method helps to promote the discharge of gas and alleviate abdominal distention. Flatus is produced naturally during the digestive process, as bacteria in the colon ferment undigested carbohydrates, leading to the creation of gases like hydrogen, carbon dioxide, and methane. Efficient bowel movements and the elimination of feces, including the involuntary Valsalva's maneuver, contribute to the management of flatus and overall colorectal health.