A system, method and non-transitory computer readable storage medium for monitoring a perfusion of a patient. The system, method and computer readable storage medium receive an indication of a voltage applied across a chest of the patient via a first electrode, receive a measurement of a current across the chest of the patient, resulting from the applied voltage via a second electrode, generate an impedance-based respiratory rate waveform based on the applied voltage and the measured current, generate a Fourier Transform of the respiratory rate waveform relative to a heartbeat of the patient, isolate cardiac artifacts in the Fourier Trans form and generate a perfusion waveform indicating a perfusion of a chest cavity of the patient based on the isolated cardiac artifacts.
