Latest / WhiteBoard Medicine - Emergency And Critical Care
#309 Oxygen Hemoglobin Dissociation Curve Basics Explained: Left Shift, Right Shift, P50, and More
The oxygen-hemoglobin dissociation curve is a foundational concept for understanding oxygen binding, oxygen unloading, hypoxemia, and tissue oxygen delivery. In this episode, we review what the oxygen-hemoglobin dissociation curve represents, how hemoglobin saturation relates to PaO2, what P50 means, and how left and right shifts change hemoglobin’s affinity for oxygen. Topics covered include: • What the oxygen-hemoglobin dissociation curve is • Hemoglobin saturation and PaO2 • Oxygen binding and oxygen unloading • Why the curve has a sigmoidal shape • Hemoglobin affinity for oxygen • P50 and…
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