The client is admitted with end-stage liver failure and is prescribed the laxative lactulose (Chronulac). Which statement indicates the client needs more teaching concerning this medication?

a. "I should have two to three soft stools a day."
b. "I must check my ammonia level daily."
c. "If I have diarrhea, I will call my doctor."
d. "I should check my stool for any blood."