Routine exams can often miss one of the most common causes of death in newborns: congenital heart disease. But a new test can simply and quickly find problems.

Doctors are introducing the pulse oximetry test, an efficient and non-invasive way to scan for congenital heart disease.

Just by putting this little band around their hand or foot or finger, what it does is it basically measures the level of oxygen saturation in your blood, said pediatric cardiologist Dr. Greg Perens.

The test can detect heart problems soon enough to allow time for open heart surgery to fix any issues.

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