MEDizzy - A nurse is reviewing the laboratory report of a child with

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Nursing Care of Infants

A nurse is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the nurse identify as the cause of the polycythemia?

ExplanationB. Decreased tissue oxygenation stimulates erythropoiesis, resulting in excessive production RBCs. A, D. This is not a direct cause of polycythemia. C. This may or may not affect the production of RBCs.