is admitted with a dental abscess. Blood cultures grow Viridans Group Streptococcus (VGS) that is susceptible to penicillin. Is cephalexin and metronidazole a good oral stepdown option to complete therapy?
YesNo
No
Explanation: Cephalexin has unreliable activity against VGS. Penicillin activity against VGS does not predict all 1st generation cephalosporin activity.