Patent ID: 7819803

Claim:
A method of determining a physiological condition in a mammal, said method comprising the steps of: placing an array of sensors in contact with a sample from a mammal suspected of having a physiological condition to generate a sensor array response profile; identifying the sensor array response profile in order to determine whether there exists a clinical diagnostic marker for the physiological condition; and receiving, by a data processor, the sensor array response profile output by the array of sensors and an output of the identifying step, and developing a diagnosis using said sensor array response profile in combination with the output of the identifying step, thereby detecting whether or not there exists the physiological condition, wherein the array of sensors includes a chemical sensor electrically coupled to first and second conductive leads, and wherein the sensor array response profile is generated by the steps of: a) measuring a first response between the first and second conductive leads when the chemical sensor is contacted with a first marker gas at a first concentration; and b) measuring a second response between the first and second conductive leads when the chemical sensor is contacted with the first marker gas at a second concentration different from the first concentration; and c) generating the sensor array response profile based on the first and second responses.