TOF stands for?

TOF stands for?

• A. Transposition of the great arteries
• B. Total anomalous pulmonary venous return
• C. Truncus arteriosus
• D. Tetralogy of Fallot

Answer: (D)

TOF stands for Tetralogy of Fallot, a cyanotic congenital heart defect defined by four anatomical abnormalities: pulmonary stenosis, a ventricular septal defect, an overriding aorta, and right ventricular hypertrophy. Together, these changes reduce blood flow to the lungs and mix deoxygenated blood with oxygenated blood, causing cyanosis and characteristic spells. The term Tetralogy reflects the four components, named after the surgeon who described it. The other conditions listed—transposition of the great arteries, total anomalous pulmonary venous return, and truncus arteriosus—are distinct defects with different pathophysiology and do not form the acronym TOF.

TOF stands for Tetralogy of Fallot, a cyanotic congenital heart defect defined by four anatomical abnormalities: pulmonary stenosis, a ventricular septal defect, an overriding aorta, and right ventricular hypertrophy. Together, these changes reduce blood flow to the lungs and mix deoxygenated blood with oxygenated blood, causing cyanosis and characteristic spells. The term Tetralogy reflects the four components, named after the surgeon who described it. The other conditions listed—transposition of the great arteries, total anomalous pulmonary venous return, and truncus arteriosus—are distinct defects with different pathophysiology and do not form the acronym TOF.