Systems and methods for monitoring an analyte or parameter for a patient

A sensor system for monitoring a patient, the sensor system comprising:

• a first probe sensitive to an analyte and comprising a plurality of operational ranges for monitoring a patient, the plurality of operational ranges having at least a first operational range and a second operational range;
• a photon source configured to direct photons to the first probe, wherein the first probe is configured to receive the directed photons and to emit light in response to the received photons;
• a photodetector configured to detect the emitted light;
• and
• a controller in communication with the photon source and the photodetector, and configured to:
• control the photon source to such that, in operation, the photon source directs the directed photons to the first probe according to a first time-varying profile and the first probe is excited relative to the first operational range and relative to the second operational range and emits the emitted light in response to the received photons;
• receive optical data from the photodetector based on an interaction between the emitted light and the photodetector with the first probe operating in the first operational range and in the second operational range, wherein the optical data includes a second time-varying profile;
• determine a difference between the first time-varying profile and the second time-varying profile;
• and
• based on the determined difference between the first time-varying profile and the second time-varying profile, determine a parameter associated with the analyte.