Blood pressure constantly changes from second to second as the heart beats. (What we measure as Blood pressure, in terms of pump physics breaks down like this: the top number is the direct measurement of the net force the heart muscle applies when contracting, and the bottom number is the residual pressure when the heart is at rest.) Therefore, if I take your blood pressure multiple times it will always be different, but it should be fairly close, within about 10-20 mmHg. However, if pressure on one side of the body is dramatically higher than pressure on the other side, this is a sign of a clot or constriction causing high pressure build up on one side of the clot or constriction and low pressure on the other side of the clot, due to pump dynamics and basic physics, since blood only flows in one direction under normal circumstances.
· 4 weeks ago