Monitoring carbon dioxide via capnography can be a vital noninvasive tool for veterinary professionals which can aid in the assessment of metabolism, circulation, and ventilation as well as in the detection of malfunction within the breathing system and/or anesthetic machine. The proper identification of these complications can allow early detection and intervention reducing overall anesthetic morbidity and mortality. This presentation will discuss the basics of capnography including types of measurement and the phases of a capnogram, as well as, common abnormal capnograms that can present and their common causes in order to build the confidence of veterinary professionals in the use of capnography within their practices.