In what scenario would a nurse use a hypertonic solution enema?

A hypertonic solution enema is used to draw water into the colon from surrounding tissues, which helps to soften stool and stimulate bowel movements. This mechanism makes it particularly effective for patients experiencing constipation. In such situations, the hypertonic solution increases the osmotic pressure in the intestinal lumen, leading to an increase in bowel motility and facilitation of stool passage.

In other scenarios, such as bowel preparation before surgery, different types of solutions may be used to ensure a clean bowel for better visualization and access. For patients with fluid overload, hypertonic solutions would not be appropriate as they could exacerbate the condition by drawing additional fluid into the vascular system. Similarly, in pediatric patients, care must be taken with enema solutions; isotonic solutions are often preferred due to the risk of dehydration and electrolyte imbalances from hypertonic solutions.

Thus, the specific mechanism of action and intended effect of the hypertonic solution enema aligns most closely with the needs of a patient experiencing constipation, making it the appropriate choice in that scenario.