A method for continuous non-invasive hemodynamic state monitoring in a subject. The method includes acquiring continuous ultrasound data, estimating continuous arterial waveforms based upon the acquired ultrasound data, and deriving hemodynamic parameters for each cardiac cycle from the arterial waveforms. The method further includes defining a current hemodynamic state of the subject by setting limits on one or more hemodynamic parameters based upon the variation of these parameters over an initial period of time, and continuously monitoring a hemodynamic state of the subject. Further, a current state for one or more hemodynamic parameters of the subject are compared to previously determined limits for the one or more hemodynamic parameters, and either an alarm is triggered in an event that a change is detected in the current state of the one or more hemodynamic parameters or the arterial parameters are converted into a continuous estimate of the arterial blood pressure.