Using the left hand to measure blood pressure is a standard practice in medical settings. This is primarily because the majority of people are right-handed, and the left arm is more accessible and easier to position and stabilize during the measurement process. Additionally, the left arm is generally positioned at the same level as the heart, providing a more accurate reading of blood pressure. However, in specific situations where there is an injury or medical condition affecting the left arm, the right arm can be used instead. It is ultimately important to follow the guidance of a healthcare professional for the most accurate blood pressure measurement.
