1. A 61-year-old wom an w ith poor dentition was scheduled to have all of her rem aining teeth extracted for subsequent tting of dentures. Past m edical history was signi cant for num erous infections...

1. A 61-year-old wom an w ith poor dentition was scheduled to have all of her rem aining teeth extracted for subsequent tting of dentures. Past m edical history was signi cant for num erous infections of the oral cavity. The wom an had been su ering from m itral stenosis w ith m ild cardiac insu ciency for 5 years. Which of the follow ing drugs would be the m ost appropriate agent to prescribe to this wom an before and after the extraction? A. Am oxicillin B. Gentam icin C. Aztreonam D. Piperacillin E. Metronidazole