Older people or high-risk individuals may be managed with variable results with medical treatment. The disorder requires lifelong monitoring, and treatment may require frequent adjustments. Call your health care provider if renovascular hypertension has been diagnosed and symptoms occur, worsen, or do not improve with treatment. Also call if new symptoms develop. A sphygmomanometer is used to measure blood pressure, and is the most accurate method.
Blood pressure is measured against the height of a column of mercury.
This is the most accurate method because it can only be made inaccurate by changing the gravitational constant of the earth.