Which ONE of the following is an example of acyanotic congenital heart disease?

The answer is B. Coarctation of the aorta occurs predominantly in males and is a narrowing of the aorta between the left subclavian artery and the orifice of the ductus arteriosus. The others are all examples of cyanotic anomalies in which systemic venous blood is mixed with oxygenated blood leaving the heart; the red cell count rises which increases the cyanosis.