Methods and systems for calculating body fluid metrics are provided. In accordance with an exemplary embodiment of the present technique, there is provided a method for calculating body fluid metrics by acquiring an absorbance spectrum of a subject's tissue over a range of near-infrared light, performing...http://www.google.se/patents/US8175665?utm_source=gb-gplus-sharePatent US8175665 - Method and apparatus for spectroscopic tissue analyte measurement
