Home > Hypertension > What is Considered High Blood Pressure Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Oct 19, 2008 by xescvs, Views: 3088 Your blood pressure must be taken while you are at rest. If you have blood pressure checked on a number of occasions at greater than 140/90, you have high blood pressure. If your arteries have lost their ability to stretch due to atherosclerosis, you may develop high blood pressure. It can also be worsened by too much salt in the diet