Test to spot baby heart defects

A quick and cheap test could save the lives of babies born with congenital heart defects, doctors say.

A study on 20,055 newborns, published in The Lancet, showed testing oxygen in the blood was more successful than other checks available.

The researchers have called for the oxygen test to be used in hospitals across the UK.

Health reporter Michele Paduano explains how the simple test works for newborns.