My guest this week is Dr. Matthew Vanneman, an attending adult cardiothoracic anesthesiologist at the Massachusetts General Hospital.  We explore the claim that an alternative antibiotic to cephalosporins (e.g., cefazolin) should be selected for penicillin-allergic patients in the perioperative setting.  A list of references is available at depthofanesthesia.com.  We'd love to hear from you! Email us at [email protected] or tweet us @DepthAnesthesia.