Accuracy of Pulse CO-Oximetry Technology in Characterizing Noninvasive SpHb

  • End date
    Dec 1, 2023
  • participants needed
  • sponsor
    University of California, Davis
Updated on 23 March 2022
elective surgery


This protocol is a request from Masimo to assist in the collection of data to be used to further refine the accuracy of the monitor's algorithm.


The specific aim of this study is to collect data to characterize Masimo's noninvasive Rainbow SpHb technology during surgeries. The purpose is to compare Masimo Rainbow technology to arterial blood samples taken during surgery. Hemoglobin concentrations in the arterial blood samples will be measured using standard blood analyzers on site and/or the sponsor's laboratory.

Condition Surgery, Hemoglobin
Treatment Blood draw, Pulse CO-Oximetry Technology
Clinical Study IdentifierNCT01997502
SponsorUniversity of California, Davis
Last Modified on23 March 2022


Yes No Not Sure

Inclusion Criteria

Patients scheduled for elective surgery requiring intra-arterial pressure monitoring

Exclusion Criteria

Age less than 18 years
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