Simultaneous Hemodynamic and Ventilatory Monitoring Using Radio Frequency Impedance Interrogation (RFII), Thoracic Impedance Cardiography and Invasive Hemodynamic Monitoring Methods in Post Operative Cardiac Patients

The purpose of this study will be to compare standard of care invasive methods to an FDA approved non-invasive device and a novel wireless non-invasive device, both manufactured by Non-Invasive Medical Technologies Inc., with the goal of correlating the data generated by the novel device to the measurements taken by the standard of care invasive monitors.