![]() ![]() ![]() Pulse oximetry is an indirect, non-invasive, accurate and safe method of measuring oxygen saturations (SpO 2). The study provides evidence that placement of a finger probe on the ear is unsafe clinical practice, potentially leading to patient mismanagement. Subgroup analysis in hypoxic patients (SaO 2<90%) showed a significant difference between ABG SaO 2, and finger and ear SpO 2. Saturation from the ear was significantly different (-4.29% P<0.001). Finger probe saturation was not statistically different from SaO 2, with a mean difference of -0.66% (P>0.05). Bland-Altman analysis was performed to evaluate agreement between the methods. ![]() ![]() This study evaluated how treatment decisions might be impacted by SpO 2 values obtained using a finger probe placed on the pinna of the ear in a cohort of 46 patients receiving non-invasive ventilation compared with values obtained from a probe on the finger and the results of arterial blood gas (ABG) (SaO 2) analysis. However, inappropriate oximeter probe placement has been shown to affect the measured oximetry values in healthy and normoxic outpatients. Pulse oximetry is widely used to assess oxygen saturation (SpO 2) in order to guide patient care and monitor the response to treatment. ![]()
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March 2023
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