NCLEX-RN

Category - Physiological

Mariana, a 36-year-old client, was diagnosed with volvolus. She asks the nurse what type of intestinal obstruction this is. The nurse’s best response is based on the understanding that:
  1. It is caused by twisting of the intestines.
  2. It is a mechanical obstruction of the large intestines.
  3. It is caused by a tumor in the intestines.
  4. It is caused by adynamic peristalsis of the intestines.
Explanation
Answer: A - A volvolus is an obstruction in the intestines that results from twisting. It commonly affects the sigmoid and ileocecal areas of the colon. When the bowel twists, the blood vessels are compressed, gastric juices and other secretions are obstructed, and intestinal pressure increases, resulting in colicky pain. The intestinal walls swell, and fluid and electrolytes cross the permeable membrane, leading to accumulation of fluids in the peritoneal cavity.
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