Multiple Choice
Why does polycythemia occur in a fetus?
A) Because fetal hemoglobin has a greater affinity for oxygen due to 2,3 diphosphoglycerate (2,3 DP)
B) Because the fetus has a different hemoglobin structure of two- and two-chains rather than two- and two ß-chains
C) Because there is increased erythropoiesis in response to the hypoxic intrauterine environment
D) Because the lungs of the fetus are undeveloped and unable to adequately diffuse oxygen to the pulmonary capillaries
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Hemoglobin in a fetus has less affinity
Q3: Which vitamin improves the absorption of oral
Q13: How does hemolytic disease of the newborn
Q14: Hemolytic disease of the newborn can occur
Q15: What are characteristics of ß-thalassemia major?<br>A) It
Q16: How is sickle cell trait different from
Q17: Which blood cells are elevated at birth,
Q33: Match each sickle cell crisis with its
Q39: Sickle cell trait may provide protection against
Q48: Match the sickle cell crises with its