The Critical Care CheckMate began as a single pocket reference 30 years ago. It quickly grew to become a best-selling series; an essential guide in the pockets of emergency & critical care professionals worldwide. This quick reference started out as a guide for nursing but our customer base now includes all emergency/critical care provider levels. Developed by professionals for professionals, our customer submissions have guided our new products. We’re proud to be the trusted critical care reference of the US Military.