Question: An older adult who experienced a brief delirium realizes that the condition was caused by prescription medication intoxication. Which statement indicates the need for further education? "I didn't know that cold and flu medicines might not mix with my regular medicines." "I thought that the herbal medicines would help me. I never realized they would make me sick." "I never realized that taking a little extra medication now and then could cause such a problem." "I get medicines from three different doctors and they don't all know what I'm taking."