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Question 10#

Which of the following is NOT one of the components of the tetralogy of Fallot (TOF)?

A. ASD
B. Ventricular septal defect
C. Right ventricular hypertrophy
D. Right ventricular outflow obstruction

Correct Answer is A

Comment:

The four features of tetralogy of F allot (TOF) are:

1. Malalignment ventricular septal defect.
2. Dextroposition of the aorta.
3. Right ventricular outflow tract obstruction.
4. Right ventricular hypertrophy.

This combination of defects arises as a result of underdevelopment and anteroleftward malalignment of the infundibular septum.