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EMCrit Podcast
EMCrit Wee - The Physiology of Oxygenation with Alex of Deranged Physiology
Jul 20, 2023
43:46
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- Pulse oximeters can be inaccurate in abnormal hemoglobin situations, requiring adjustments for proper interpretation.
- pH levels affect oxygen-hemoglobin binding, highlighting the importance of understanding acidosis and alkalosis in oxygen delivery.
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The Importance of Recognizing Hemoglobin Species in Pulse Ox Accuracy
Pulse oximeters may inaccurately estimate oxygen saturation in scenarios with abnormal hemoglobin species like carboxyhemoglobin or methemoglobin. Understanding these limitations allows critical care providers to adjust and interpret pulse ox readings effectively.
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