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What is the normal range of blood pressure?

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What is the normal range of blood pressure?

(a) 70/40 – 90/60

(b) 90/60 – 120/80

(c) 120/80 – 140/90

(d) 140/90 – 190/100

This question was posed to me in a national level competition.

This intriguing question comes from Measuring Blood Pressure & Pulse Oximetry in chapter Diagnostic Investigation in Neurology and Cardiology of Clinical Science

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Right choice is (c) 120/80 – 140/90

Easiest explanation: The normal blood pressure in an adult human is found to be in the range of 120/80 – 140/90. BP above or below it leads to high blood pressure or low blood pressure. Blood pressure is represented by systolic pressure/diastolic pressure.  Systole is when the ventricles of the heart contract, thus the pressure exerted is more and diastole is when the atria pump blood into the ventricles.

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