Although HbF represents fetal hemoglobin, some level of this form of hemoglobin persists in the adult. Which of the following represents the value for HbF in adults above which it would likely reflect some underlying pathophysiology?
A) 0.1%
B) 0.5%
C) 2.0%
D) 5.0%
E) 15%
Correct Answer:
Verified
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