24th September 2021

A newborn presents with cyanosis at birth and symptoms of heart failure such as dyspnoea (1)

A newborn presents with cyanosis at birth and symptoms of heart failure such as dyspnoea. On auscultation of the heart, he has an ejection systolic murmur heard at the left sternal edge and a loud S2. The clinician suspects a congenital heart defect. What investigation should be performed to confirm the diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.