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Misalignment of Disposable Pulse Oximeter Probes Results in False Saturation Readings That Influence Anesthetic Management
Anesthesia & Analgesia, 10/23/09
Guan Z et al. – The authors report a small case series in which misaligned disposable pulse oximeter sensors gave falsely low saturation readings. In each instance, the sensor performed well during preinduction oxygen administration and the early part of the case, most notably by producing a plethysmographic trace rated as high quality by the oximeter software. The technology is quite robust, but that the diagnosis of apparent hypoxia should include a quick check of oximeter position early on.
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