Ideal for any on-call professional, resident, or medical student, this highly templated, best-selling reference covers the common problems you’ll encounter while on call in the hospital. On Call: Principles and Protocols, 7th Edition, by Drs. Shane A. Marshall and John Ruedy, provides key information in time-sensitive, challenging situations. You’ll gain speed, skill, and knowledge with every call - from diagnosing a difficult or life-threatening situation to prescribing the right medication.