The Drug Manual States That Older Adult Patients Are at Increased

The drug manual states that older adult patients are at increased risk for hepatotoxicity. Which action is most important when prescribing this medication to an 80-year-old patient?

A) Obtaining baseline liver function studies
B) Ensuring that the drug is taken in the correct dose at the correct time
C) Discontinuing the order; the drug is contraindicated for this patient
D) Giving the medication intravenously to avoid first pass metabolism