EMS Field Guide ALS Version Author:Paul Lesage, Paula Derr, Jon Tardiff The Seventeenth Edition EMS Field Guide® ALS version has been updated with the latest CPR and ACLS algorithms from the AHA. This handy guide makes it easy for paramedics, nurses and physicians to look up their patients' medications, check drug doses, quickly interpret 12-Lead EKGs and much more! At only 3"x5" it easily fits in your pocke... more »t, has color-coded tabs, and is waterproof, alcohol-fast and durable.« less