Embodiment of the technology disclosed herein relate to a Foley type catheter for sensing physiologic data from a urinary tract of a patient, a system that includes the catheter and a data processing apparatus, as well as methods for sensing physiologic data from the urinary tract of a patient that make use of embodiments of the catheter and the system. Embodiments of the catheter may include a pressure sensor having a pressure interface disposed at a distal end of the catheter, a pressure transducer at a proximal end of the catheter, and a fluid column disposed between the pressure interface and the pressure transducer. When an embodiment of the catheter is inserted into the urinary tract and the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it from the pressure interface into a chronological pressure profile. As delivered by embodiments of the catheter, the pressure profile has sufficient resolution to be processed by embodiments of the data processing apparatus into one or more distinct physiologic pressure profiles, as, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
