A Patient Tells the Nurse That He Was Told by the Prescriber

A patient tells the nurse that he was told by the prescriber that the analgesic he is taking is very effective. Which statement by the patient demonstrates an understanding of the drug's effectiveness?

A) "I don't have to worry about toxicity, since it takes a large amount of this drug to cause an overdose."
B) "It has no side effects and doesn't interact with other drugs."
C) "I only have to take it every 12 hours."
D) "It might make me sleepy, and it lessens pain for several hours at a time."