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NerdWallet: Unnecessary medical tests can be risky, stressful, and expensive: How to avoid them

This is reprinted by permission from . 

You might not be surprised to learn that U.S. health care facilities administer an enormous number of tests. One study in the American Journal of Medicine estimated 4 billion to 5 billion imaging, lab and other diagnostics annually.

But here’s the 2017 report’s shocker: Approximately half of those tests…

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