A nurse is planning care for a child who has constipation-predominant irritable bowel syndrome (IBS-C). Which of the following actions should the nurse anticipate?

Choice A reason: Omeprazole is a proton pump inhibitor used to treat gastroesophageal reflux disease (GERD) and peptic ulcer disease. It has no therapeutic role in managing IBS-C. Therefore, this option is incorrect. Choice B reason: Loperamide is an antidiarrheal medication used to treat diarrhea-predominant IBS (IBS-D). It is not appropriate for constipation-predominant IBS, as it would worsen constipation. This option is incorrect. Choice C reason: A diet high in fiber is the mainstay of treatment for IBS-C. Fiber increases stool bulk, promotes bowel motility, and helps relieve constipation. This is the correct answer because it directly addresses the underlying problem of constipation in IBS-C. Choice D reason: Restricting fluid intake would worsen constipation by reducing stool softening and bowel motility. Adequate hydration is essential for managing constipation. Therefore, this option is incorrect.