Bug Juice Potpourri

In this month's Journal Club, we covered several articles that looked at the use of antibiotics in the Emergency Department.  Does adding Trimethoprim-Sulfamethoxazole to Cephalexin increase the rates of clinical cure in uncomplicated cellulitis? For patients receiving Vancomycin in the ED, how many are appropriately dosed and how many receive a sufficient number of doses to hopefully limit the emergence of resistant bacteria?  Are patients receiving Vancomycin and Piperacillin-Tazobactam really at increased risk of acute kidney injury?