This study guide is designed to help test takers get a better understanding of the material on the national exam. Each topic is broken down into separate chapters, ending with an easy to follow answer key. All questions are multiple choice with four answers to choose from. The introduction offers advice, tips and information regarding the test. The intention of this book is to calm the nerves of the reader as well as prepare them for the tough test ahead. Questions include: Which cells help the immune system by processing antigens? Pacinian Corpuscles are located in which layer of skin? On an average, how many new red blood cells are produced each second? Which of the following is an example of an antihistamine? This meridian is NOT associated with Yang?