AAB MT Hematology
What is carboxyhemoglobin? - ANSWER A stable complex of carbon monoxide and hemoglobin that forms in RBCs when carbon monoxide is inhaled or produced in normal metabolism. Large quantities of it hinder delivery of O2 to the body. Tobacco smoking (through carbon monoxide inhalation) raises the blood levels of COHb by a factor of several times from its normal concentrations. Which hemoglobin has a 200 times greater binding capacity for the hemoglobin molecule than oxygen? - ANSWER Carboxyhemoglobin Which hemoglobin derivative causes irreversible changes in RBCs? - ANSWER Sulfhemoglobin -- makes blood incapable of carrying oxygen.
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aab mt hematology