After taking orlistat for one week, a female client tells the home health nurse that she is experiencing increasingly frequent oily stools and flatus. Which action should the nurse take?

Instruct the client to increase her intake of saturated fats over the next week.

Advise the client to stop taking the drug and contact her healthcare provider.

Obtain a stool specimen to evaluate for occult blood and fat content.

Ask the client to describe her dietary intake history for the last several days.