Bart’s hydrops fetalis is lethal because:
Correct Answer: Hb Bart's cannot release oxygen to fetal tissues
Description: c. Hb Bart's cannot release oxygen to fetal tissues(Ref: Nelson's 20/e p 2349-2352, Ghai 8/e p 341)As Hb Bart's consists of 4y chains, which have very high oxygen affinity, it cannot release oxygen to fetal tissues.
Category:
Pediatrics
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