Nitric Oxide (NO) is a free radical, a gas, and a pluripotent product of mammalian cells. Only a few years ago, scientific discussions of NO were largely held in the context of the chemistry of air pollution. Now, however, the great significance of NO as a signalling and cytotoxic molecule has captured the attention of the biomedical community. This book provides a very up-to-date review of the role of NO in sepsis and ARDS. Consideration is given to NO both as a pathophysiologic mediator as well as a therapeutic agent. An internationally recognized group of scientists and clinicians have contributed chapters dealing with cutting-edge science and