Which arm should be used for blood pressure measurement?

The correct answer is that the arm with the stronger pulse or the right arm should be used for blood pressure measurement because using the arm with the stronger pulse typically provides a more accurate reflection of the central arterial pressure. Blood pressure readings can vary between arms due to differences in vascular resistance and anatomical variations.

In cases where the brachial artery, which is where the blood pressure cuff is placed, is more prominent or better perfused in one arm, that arm will yield a more reliable measurement. If one arm demonstrates a markedly weaker or diminished pulse, it can indicate potential vascular issues, thereby making the stronger arm the preferred choice for assessing blood pressure.

Using either arm can be accepted under certain conditions, but for consistency and accuracy, especially in clinical settings, it is recommended to use the arm with the stronger pulse. Furthermore, specific guidelines often suggest measuring blood pressure in the arm that is more dominant or provides a clearer pulse for the best results.