• The Washington Post

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Walk into a hospital intensive care unit and hear the din: A ventilator honks loudly. An infusion pump emits a high-pitched beep-beep every six seconds. A blood pressure monitor pushes out one long tone after another.

This particular racket, at MedStar Washington Hospital Center, comes from medical devices and equipment that scans for potentially dangerous changes in patients’ heart rhythm, blood pressure and other vital signs.

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