Doctors use lung diffusion tests to measure how well a person’s lungs exchange oxygen and carbon dioxide. The test can detect lung damage and help diagnose lung conditions, including emphysema and ...

What are blood gas tests, and when are they requested? The industry term ‘blood gas testing’ has come to mean the accurate measurement and reporting of a wide menu of blood parameters, all on a single ...

Health officials urge Michigan residents to test their homes for radon.

This article is co-published with ProPublica, a nonprofit newsroom that investigates abuses of power. About 5 billion years ago, stars merged and exploded, creating uranium that eventually became ...

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up for Dispatches, a newsletter that spotlights wrongdoing around the country, to receive our stories in your inbox every ...