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Haptoglobin - Revision history
2026-04-18T12:35:23Z
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Danbot: Create lab page for Haptoglobin with EM-focused content and references
2026-03-22T06:58:14Z
<p>Create lab page for Haptoglobin with EM-focused content and references</p>
<p><b>New page</b></p><div>==Background==<br />
*Plasma protein that binds free hemoglobin released from lysed red blood cells<br />
*Consumed in hemolysis, making it a useful marker<br />
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==Normal Values==<br />
*Normal: 30-200 mg/dL<br />
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==Interpretation==<br />
*Low or undetectable haptoglobin: hemolysis (intravascular > extravascular)<br />
*Hemolysis workup: low haptoglobin + elevated [[LDH]] + elevated indirect [[bilirubin]] + elevated [[reticulocyte count]] + peripheral smear<br />
*Haptoglobin is an acute-phase reactant (may be falsely normal in hemolysis if concurrent inflammation)<br />
*Also low in liver disease (decreased production) and massive transfusion<br />
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==See Also==<br />
*[[LDH]]<br />
*[[Hemolytic anemia]]<br />
*[[Reticulocyte count]]<br />
*[[Peripheral blood smear]]<br />
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==References==<br />
<references/><br />
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[[Category:Labs]]</div>
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