When reviewing medication instructions for cascara sagrada, a nurse knows it is important to advise the client to:

Cascara sagrada is a natural laxative derived from the bark of the rhamnus purshiana tree, commonly used to relieve constipation. When advising a client about the use of cascara sagrada, emphasizing the importance of staying hydrated is crucial because laxatives can lead to increased fluid loss through bowel movements. Adequate hydration helps prevent dehydration, which can occur if the bowel is stimulated to move more rapidly without sufficient fluid intake.

Hydration not only supports overall health but also complements the action of cascara sagrada by ensuring that the stool remains soft and easy to pass. Without proper hydration, there is a risk that the client may experience cramping or discomfort, and potentially develop electrolyte imbalances.

While increasing fiber intake is generally advisable for digestive health, it should be combined with adequate fluid intake for optimal results with laxatives. Monitoring potassium levels can become relevant if the laxative use is prolonged or if the client has existing health concerns, but it isn't the primary focus when initially advising on cascara sagrada. Limiting fluid intake is counterproductive in this context, as hydration is essential for the laxative's effectiveness.