The elderly female client with diverticulosis is taking docusate calcium (Surfak), a stool softener, daily. The client tells the clinic nurse that her daughter has her taking the herb cascara every...

The elderly female client with diverticulosis is taking docusate calcium (Surfak), a stool softener, daily. The client tells the clinic nurse that her daughter has her taking the herb cascara every day. Which intervention should the nurse implement?

1. Instruct the client to quit taking the herb immediately.

2. Explain that the herb will help the diverticulosis.

3. Tell the client to have her daughter call the nurse.

4. Advise the client to inform her health-care provider.