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Understanding Anesthesiology - The Global Regional Anesthesia ...

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Oxyhemoglobin dissociation curve<br />

<strong>The</strong> oxyhemoglobin dissociation curve describes the affinity of hemoglobin for oxygen as a<br />

function of partial pressure of oxygen. It is a sigmoidal curve. <strong>The</strong> curve can shift to the right<br />

with hyperthermia, hypercarbia, hypoxemia and elevated levels of 2,3 DPG. When shifted to<br />

the right, hemoglobin has less affinity for oxygen and therefore offloads oxygen more readily<br />

to the tissue.<br />

Related Glossary Terms<br />

Hypoxemia, Oxygen saturation, Pre-oxygenation, Pulse oximeter<br />

Index<br />

Find Term<br />

Chapter 1 - Fluid Management<br />

Chapter 5 - Obstetrical <strong>Anesthesia</strong>

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