Doctors should add an oral glucose tolerance test (OGTT) to their hemoglobin A1C (HbA1C) when they screen high-risk children for prediabetes and diabetes, new research suggests.

If you're pregnant and due for an oral glucose tolerance test, read this to learn what you need to know about it.

Developed by UK-based company Digostics, GTT@home is an oral glucose tolerance test (OGTT) that uses blood samples to measure how well the body processes glucose.