(AP) — The government is taking steps to help ensure that children who need CT scans and other X-ray-based tests don’t get an adult-sized dose of radiation.

Too much radiation from medical testing is a growing concern, especially for children, because it may increase the risk of cancer later in life.

Wednesday, the Food and Drug Administration proposed guidelines urging manufacturers to design new scanners to be safer for the youngest, smallest patients — and put new advice on its website to teach parents what to ask about these increasingly common tests.

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