Abstract
Plainly, clearly, and in some detail, Drs Weber, Janicki, and their seven contributors tell their readers why they should perform cardiopulmonary exercise testing (CPX) and how to go about it. Beginning their book with concise and well-illustrated sections on normal and disordered physiology, Weber and Janicki proceed to discuss the different systems of exercising, testing, and monitoring. They find a good deal of the commercially available apparatus user-friendly. They heavily rely on noninvasive measurements of respiratory gas exchange, but they do not hesitate to use the Swan-Ganz flotation catheter. They show how noninvasive CPX determinations (made during incremental treadmill exercise) yield values for cardiac reserve that are free of patient or physician bias. If the underlying nature of the patient's heart disease is known, no other form of testing may be needed to follow its natural course and its response to different therapeutic interventions. On the other hand, a few
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