Related Experiment Video
Updated: Feb 26, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans
Published on: December 22, 2016
Usefulness of Pulse Oximeter That Can Measure SpO2 to One Digit After Decimal Point
Akihiro Yamamoto1, Naoto Burioka2, Aritoshi Eto3
1Division of Medical Oncology and Molecular Respirology, Department of Multidisciplinary Internal Medicine, School of Medicine, Tottori University Faculty of Medicine, Yonago 683-8504, Japan.
Abstract:
Pulse oximeters are used to noninvasively measure oxygen saturation in arterial blood (SaO2). Although arterial oxygen saturation measured by pulse oximeter (SpO2) is usually indicated in 1% increments, the value of SaO2 from arterial blood gas analysis is not an integer. We have developed a new pulse oximeter that can measure SpO2 to one digit after the decimal point. The values of SpO2 from the newly developed pulse oximeter are highly correlated with the values of SaO2 from arterial blood gas analysis (SpO2 = 0.899 × SaO2 + 9.944, r = 0.887, P < 0.0001). This device may help improve the evaluation of pathological conditions in patients.
More Related Videos
14:28Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
Published on: May 10, 2024
04:10Author Spotlight: Exploring Venous Waveforms for Non-Invasive Respiratory Monitoring in Pigs
Published on: March 8, 2024
Related Concept Videos
Pulse Oximetry
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Guidelines For Measuring Vital Signs
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Special considerations while measuring oxygen saturation
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
Special considerations while measuring pulse
Pulse
The pulse serves as a clinical...