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Clinical Laboratory Hematology 3rd Edition by Shirlyn McKenzie, Lynne Williams
Edition 3ISBN: 978-0133076011Clinical Laboratory Hematology 3rd Edition by Shirlyn McKenzie, Lynne Williams
Edition 3ISBN: 978-0133076011 Exercise 43
An asymptomatic patient presents with persistent erythrocytosis. The hematologist has ruled out polycythemia vera and other causes. What is an additional explanation for the erythrocytosis, and what laboratory assay might be useful in this case? (Objective 11)
A) an unstable hemoglobin variant identified by performing a Heinz body stain
B) a high-affinity hemoglobin variant identified by isoelectric focusing
C) a crystalizable hemoglobin variant demonstrated by observing hemoglobin C crystals on a smear
D) a quantitative decrease in globin chain production indicated by observing an increased level of HbF
A) an unstable hemoglobin variant identified by performing a Heinz body stain
B) a high-affinity hemoglobin variant identified by isoelectric focusing
C) a crystalizable hemoglobin variant demonstrated by observing hemoglobin C crystals on a smear
D) a quantitative decrease in globin chain production indicated by observing an increased level of HbF
Explanation
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In the given case, an individual is suff...
Clinical Laboratory Hematology 3rd Edition by Shirlyn McKenzie, Lynne Williams
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