A 6-day-old girl presents lethargic and tachypnoeic with hypotension, hypoxia and a loud cardiac murmur. You are concerned about congenital heart disease with a duct dependent lesion.

1. List (3) conditions that would present with cyanosis and (3) conditions that would present without cyanosis. 6 marks

2. Apart from congenital heart disease, list (2) other potential causes of this presentation and provide a cardinal feature on history or examination. 2 marks

3. State (4) components of your management of this child. 4 marks