A nurse is providing teaching to a client who is about to start taking psyllium to treat constipation. Which of the following instructions should the nurse include?
a. Expect results in 6 to 12 hr.
b. Urinate every 4 hr.
c. Take the drug with at least 8 oz (237 mL) of fluid.
d. Avoid activities that require alertness.
e. Increase fluid and fiber intake.