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Redford D et al (University of Arizona); Absolute and Trend
Accuracy of Masimo O3 Regional Oximetry in healthy Volunteers
During Controlled Hypoxia; Abstract 2014
• 23 of 27 subjects enrolled used for data collection
• Ages 18-35 years, 12 Males and 11 Females
• 202 paired measurements
• Reference arterial and venous blood samples (SavO2), using a
70:30 ratio of SjvO2 and SavO2
• Reference blood samples were taken from both radial artery and
internal jugular bulb
• Obtained at baseline and after a series of increasingly hypoxic
states
• Accuracy:
• Absolute 4.0% ARMS
• Trending 2.1 % ARMS