This 4-page laminated Guide is the ultimate Choking and First Aid reference source for the emergency responder! This comprehensive quick reference Guide provides the Choking / CPR beginner / student practitioner and the experienced Choking / CPR provider with clear descriptions of all important Choking / CPR principles and techniques. All common injuries requiring Choking / CPR treatment are described. This Guide is a companion to the First Aid. Principles of basic First Aid. CPR techniques. Choking - what to do! Diagrams. A companion Guide to First Aid.