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The four features of tetralogy of Fallot
Paediatrics · exam-style practice question with explanation
Which set lists the four features of tetralogy of Fallot?
- A. ASD, VSD, PDA and coarctation
- B. VSD, overriding aorta, pulmonary stenosis and right ventricular hypertrophy
- C. Mitral stenosis, AF, LVH and VSD
- D. Transposition, ASD, PDA and pulmonary atresia
Show the answer and explanation
Answer: B. VSD, overriding aorta, pulmonary stenosis and right ventricular hypertrophy
Tetralogy of Fallot is a ventricular septal defect, an overriding aorta, right ventricular outflow (pulmonary) obstruction and right ventricular hypertrophy. It is the commonest cyanotic congenital heart disease after infancy. Children may squat during 'tet spells' to raise systemic resistance.
Key point: Fallot: VSD + overriding aorta + pulmonary stenosis + RVH.
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