Introduction
anemia, Aoyagi
ANEMIA
In 1974 in Japan, Takuo Aoyagi and Akio Yamanishi independently filed patents which became the foundational science for current pulse oximetry technologies [Pulse oximetry (SpOPulse oximeter accuracy may be impacted by multiple factors including, but not limited to, low perfusion, motion, skin pigmentation, dyshemoglobinemias, anemia, dyes, nail polish, and ambient light [Pulse oximetry inaccuracy related to skin pigmentation is currently being reevaluated by the United States Food and Drug Administration (FDA), who held a Medical Devices Advisory Committee meeting on pulse oximetry in November of 2022 [Pulse oximetry technology has improved over time to reduce measurement errors, including those caused by motion and low perfusion. The use of these newer algorithms has been shown to improve clinical performance by reducing both data dropout and false alarms [Variations in pulse oximetry accuracy may be caused by hardware, software and algorithms, wireless connectivity, and other design elements which have been introduced to maximize signal quality and reliability across a variety of challenging clinical conditions. Thus, the purpose of this study was to evaluate and compare the accuracy of three currently available pulse oximeters: (GE HealthCare CARESCAPE ONE TruSignal SpO