Answer to Question 1
ANS: C
Aminoglycosides can cause ototoxicity. Any changes in hearing should be reported to the provider so that serum drug levels can be monitored. The dose is correct for this patient's weight (5 mg/kg/day in 4 divided doses). A hearing test is not indicated unless changes in hearing persist.
Answer to Question 2
ANS: C
Levofloxacin may increase the effects of oral hypoglycemic medications, so patients taking these should be advised to monitor their serum glucose levels closely. Antacids decrease the absorption of levofloxacin. NSAIDs taken with levofloxacin can cause central nervous system reactions, including seizures.