Systemic Circulation - NCLEX-PN

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Question

Which of the following is the proper unit of measurement for blood pressure?

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Answer

The proper unit when recording a patient's blood pressure is mmHg, or millimeter of mercury. This is derived from a historical measurement of how many millimeters of mercury in a mercury manometer were able to be elevated by a particular pressure. Due to it's toxicity, are longer used in medical equipment, though the unit remains in use.

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