Figure 1. The oxyhaemoglobin dissociation curve illustrates the relationship between SaO2/SpO2 and PaO2.
Figure 2. Range of oxygenation states that can be assessed with SaO2/SpO2, ORi, and PaO2. SaO2/SpO2 can assess hypoxia and normoxia, PaO2 can assess all ranges of oxygenation, and SpO2 with ORi provides real-time visibility from hypoxia to the moderate hyperoxic state.
Figure 3. ORi levels drop prior to “30% FiO2” period and “intubation” period, and minutes before the SpO2 drop. ORi then rises during re-oxygenation.
In a study published in Anesthesiology, researchers found:
In a study published in Anesthesia & Analgesia, researchers found:
Masimo rainbow SET is a noninvasive monitoring platform featuring Masimo SET® Measure-through Motion and Low Perfusion™ pulse oximetry with the option to measure multiple additional parameters.
Szmuk P et al. Anesthesiology. 2016; 124:00-00.
Applegate et al. Anesth Analg. 2016 Mar 22.
ORi is not licensed for sale in Canada.
ORi Parameter and RRp Parameter have obtained CE Marking. Not available in the U.S.
ORi monitoring is not intended to replace laboratory blood testing. Blood samples should be analysed by laboratory instruments prior to clinical decision making.
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