Workbook for Chang's Clinical Application of Mechanical Ventilation, 4th

This workbook is well written with clear and concise questions, however there is no answer key in the workbook and therefore no way of determining if your understanding of a topic is correct. This makes the workbook useless as a study tool. To make matters worse, there is no way (at least none that I have yet found) to obtain the answers from the Cengage/Delmar website (which is also useless). The customer support on the Cengage/Delmar website is convoluted and seems designed to deter anyone from using it. I have been unable to reach customer support by phone. I highly recommend avoiding the purchase of this workbook if you intend to use it as a study tool. I will avoid purchasing any future items from Cengage/Delmar, even if required by a course instructor. I give this product a one star rating only because I can not give it zero stars. Production of a college level workbook without an answer key is ridiculous.

Received textbook/workbook with about 40 pages missing, chapters 1-4. Unusable for course. Hard to miss. Surprised it would be sold by a seller with good ratings. Returned.