Measuring the dissolved oxygen through a multi-parameter photometer<unk>  (symbol<unk>  is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium at the given temperature. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. The standard unit of<unk>  is percent (%).<unk>  can be measured regionally and noninvasively. Arterial<unk>  (SaO2) is commonly measured using pulse oximetry. Tissue<unk> uration at peripheral scale can be measured using NIRS. This technique can be applied on both muscle and brain.
Oxygen saturation
Blood gas tension
Respiratory rate
Oxygenation index
Blood pressure
Fraction of inspired oxygen
Heart rate
Breathing gas