When opening and closing valves on medical equipment, it is helpful to remember "lefty loosey, righty tighty."

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"Lefty loosey, righty tighty" is a helpful reminder when opening and closing valves on medical equipment or any other type of threaded object. Turning a valve or screw counterclockwise (to the left) will loosen or open it, while turning it clockwise (to the right) will tighten or close it.

When Opening and Closing Valves on Medical Equipment, It Is