Abstract: A system and method for managing the care of a patient includes receiving (410) physiological signals of a patient; extracting (440) respiration information from the physiological signals; determining a vital sign of the patient by: using (450, 460) the respiration information to determine portions of the physiological signals, or of vital sign information extracted from the physiological signals, that correspond to the expiration phase of the respiratory cycle; determining (470) a vital sign of the patient using only the portions of the physiological signals, or of the vital signal information, that correspond to an expiration phase of the respiratory cycle; and displaying an indication of the determined vital sign at an output device.

Abstract: An apparatus and method for non-invasive determination of airway resistance for the detection of pulmonary airway disease includes providing an apparatus and method wherein changes in a pulsatile blood pressure waveform are detected by PhotoPlethysmoGram (PPG) or Ballistography (BSG) and are automatically determined to reflect decreases in airflow and changes in airway resistance.

Abstract: The present patent application discloses a system that includes a pressure generator; one or more sensors configured to generate output signals conveying information related to one or more parameters of a pressurized flow of breathable gas to an airway of the subject and respiration of the subject; and one or more hardware processors configured by machine readable instructions to: determine the one or more parameters of the pressurized flow of breathable gas and the respiration of the subject based on the information in the output signals; determine one or more indices of respiratory impedance for the airway of the subject based on the determined parameters; determine a change in health status of the subject based on the one or more indices of respiratory impedance; and generate an alert indicative of the change in health status for communication to the subject and/or a caregiver of the subject.