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Tests for High Blood Pressure

Blood pressure is measured in millimeters of mercury, or mm Hg and is defined as the amount of force produced by the arteries when the heart is resting and the amount of pressure between heartbeats. Tests for high blood pressure measure your systolic and diastolic pressure and compare the readings to those of a "normal" adult. You should have your blood pressure checked annually if you have high blood pressure or pre-hypertension.

  1. Measurements

    • The top number of a blood pressure reading measures your systolic pressure---the maximum force exerted when your heart contracts. The bottom measurement of a blood pressure test indicates your diastolic pressure---the minimum amount or pressure in your arteries when the heart is resting.

    Hypertension

    • High blood pressure, also known as hypertension, is defined as a systolic pressure of 140 mm or more or a diastolic pressure that exceeds 90 mm. Without testing, it is difficult to determine if your blood pressure is high because you will typically not experience any symptoms.

    Normal Reading

    • A standard adult blood pressure test reading could be 118/78 mm. However, readings vary based on your age, fitness and other factors.

    Testing Method

    • A sphygmomanometer is a medical instrument used to measure blood pressure. It is a cuff that fits snugly around your arm. The cuff's gauge will move as the professional administering the test increases the pressure around your arm using a ball-shaped pump attached to the cuff. This is a quick and painless test used to determine if your blood pressure is too high.

    Test Preparation

    • High blood pressure tests can be performed at any time. Your arm must be supported and positioned at your heart's level during the test. A new test will typically be performed five minutes after you rest, if your doctor needs to compare multiple readings.

    Complications

    • High blood pressure tests are painless and quick. You may experience numbness or tingling in your fingers for a short period of time, if the test is performed multiple times.

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