A system for optically measuring blood parameters including a light source and light transmitter for transmitting light to the blood, a light remitter for capturing remitted light, a spectrometer breaking the remitted light into its spectral components and a processor for comparing a morphologically distinct portion of the remitted light to a database of known morphologies. Each of the known morphologies corresponds to a measurement value at least one parameter, such as an analyte. Advantageously, the determined morphologies can uniquely correspond to two or more blood parameters, such as O2Hb and tHb, allowing simultaneous determination of the two parameters.
