What should the nurse assess for in a patient with diminished colonic response taking cascara sagrada?

In a patient with diminished colonic response who is taking cascara sagrada, assessing for signs of dehydration is critical. Cascara sagrada is a natural laxative that can stimulate bowel movements. However, if the colonic response is diminished, the patient may not have effective bowel movements, leading to prolonged use of the laxative. This can result in fluid loss through the stool and may not be compensated for without adequate fluid intake.

When the body loses fluids and does not replace them adequately, signs of dehydration such as dry mucous membranes, decreased urine output, and increased thirst can arise. Monitoring for these signs helps ensure that the patient maintains proper hydration and prevents complications associated with dehydration, especially if the laxative is causing increased bowel activity even in the context of poor colonic response.