Materials
All study devices (GE HealthCare CARESCAPE ONE TruSignal SpOIn the motion group, a 22-gauge radial arterial catheter was used for sampling reference co-oximetry oxyhemoglobin (SaOEthically, to minimize the study risks for the subjects an arterial line was used only in the motion group. Arterial blood samples were collected to allow for comparison of device accuracy against the gold standard SaO