capnography & hypercapnia

pulse oximetry and capnography capnography & hypercapnia ijasudheen c intern capnography definition: noninvasive measurement of the partial pressure of c02 in exhaled air provides instantaneous information about ventilation how effectively c02 is being eliminated by the pulmonary system perfusion how effectively c02 is being transported through the vascular system metabolism how effectively c02 is being produced by cellular metabolism exhalation exhalation can be divided into 3 phases: phase 1: expiration from dead bronchiolar space – no co2 yet exhaled phase 2: mixture of dead space air + alveolar co2 reaches the mouth known as alveolar washout and recruitment phase 3: nearly pure, co2-rich alveolar air is exhaled called the alveolar plateau end-tidal co2 the peak partial pressure of co2 ...

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