Difficulty: Medium
Average Score: 71%
Full-length
The parents of a child with tetralogy of Fallot ask the nurse why it is called a cyanotic heart defect. The nurse responds that it is called a cyanotic heart defect because:
Correct answer
C
Rationale
Tetralogy of Fallot causes right-to-left shunting, allowing deoxygenated blood to enter systemic circulation, leading to cyanosis, the hallmark of this defect.