1. A method for determining the current or future probability of shock, comprising: measuring the optical and electromagnetic properties of tissue at multiple physiologically distinct locations on or within the patient's body; utilizing the anatomic, or anatomic and temporal, patterns of the measured tissue properties, with or without other variables, in a multiparametric algorithm or equation that is predictive or diagnostic of shock; and transforming the output results of the algorithm to a uniplex numerical or visual scale or index that is a probabilistic indicative of the current or future probability of a systemic medical condition.