The diastolic measurement is just as important, if not more so, than the systolic measurement. I disagree with taking repeated measurements over a short period of time at home, as mentioned in other posts and as recommended by Mayo and others. The reason is that arteries, like veins, heart muscle, other muscle and skin, is a soft tissue that has what we call viscoelastic properties. In other words, arteries are not fully elastic and don’t return to their original form right away after loads or pressures are removed. I find it useful to take two readings in the morning, right and left, and two more of the same before bed, several hours after any meal due to blood pooling in the gut. Doing this regularly for a few weeks will give you a good idea what your BP really is. Technique is important; the cuff should be at heart level. If you drop your arm to your side, your pressures will both go up by about 10 mmHg due to an added pressure artifact. So, a normal pressure of 120/80 could then appear to be 130/90 and not really be high at all. Only your doctor can help you decide whether or not your medication should be decreased; but regular, consistent measurements will provide a guide to help inform that decision. Best of luck!
When a direct cause for high blood pressure can be identified, the condition is described as secondary hypertension. Among the known causes of secondary hypertension, kidney disease ranks highest. Hypertension can also be triggered by tumors or other abnormalities that cause the adrenal glands (small glands that sit atop the kidneys ) to secrete excess amounts of the hormones that elevate blood pressure. Birth control pills -- specifically those containing estrogen -- and pregnancy can boost blood pressure, as can medications that constrict blood vessels.