Which hand is better for checking blood pressure?
The best way to test blood pressure is the right side. Sitting comfortably after awakening and before drinking coffee/tea or inhaling nicotine. There is no significant difference between the right and left arm unless you have breast cancer and lymphadenectomy, significant atherosclerosis or a cardiac anomaly of the vessels. The reason for the right arm is because the doctor is always taught to examine the patient from the right side is the proper way of doing things. There is side to side variability from minute to minute but it is not clinically significant in the normal patient.