Karen Serrano, MD Karen Serrano, MD is an assistant professor in the department of emergency medicine at the University of North Carolina. ARTICLES June 28, 2018 Clevidipine for hypertensive emergencies May 31, 2018 RX Pad: Reducing Relapses Through Opioid Maintenance Therapy May 4, 2018 A Laughing Matter April 6, 2018 Hepatitis Cured January 31, 2018 Navigating the Penicillin Pseudo-Allergy Pandemic December 22, 2017 Hyperammonemia: Is It the Liver or Something Else? November 10, 2017 Got Calcium? October 10, 2017 When Cyclic Vomiting Has You Spinning Your Wheels September 15, 2017 The ABCs of BZDs: What You Need To Know About Benzodiazepines July 10, 2017 Think Outside the Blocks: Creative Uses For Lidocaine