Answer
The pressure in a liquid depends on the depth in the liquid where we measure the pressure.
Therefore, when we measure blood pressure, we must measure at a location that has the same height as the heart.
Work Step by Step
The pressure in a liquid depends on the depth in the liquid where we measure the pressure. At a higher location in the liquid, the pressure is lower, and at a deeper location in the liquid, the pressure is higher.
Therefore, when we measure blood pressure, we must measure at a location that has the same height as the heart.
