An enhanced electronic medical device is provided that combines some of the enhanced electronic features found in other electronic medical devices with software for executing a stochastic process control and evaluating the digital respiratory and other physiological data collected by the electronic medical device. The programmed stochastic process control is capable of selecting and calculating any one of a number of pulmonary function and other physiological parameters including at least one statistical process control variable to determine a pulmonary or other physiological threshold. Information systems linking doctor's offices and patient's electronic medical devices are further provided to transmit warning data in cases where the pulmonary or other physiological threshold is exceeded.
