Blood pressure in both arms

It might be best to take your blood pressure in both arms. According to a study published in Clin Exp Hypertens 2016, a large difference in the systolic blood pressure between arms might be a sign of cardiovascular disease.

Mild differences are not uncommon and should not cause worry. But if the difference in systolic pressure is greater than 10 mm HG, this could mean an artery in that arm has narrowed, possibly from artherosclerosis. And that could mean that blood flow is impeded to vital organs like the heart or brain.

The study analyzed data from seven other studies.