Blood pressure is measured with a blood pressure cuff that is wrapped around the upper arm. The top number in a blood pressure reading is called the systolic pressure and the bottom number is called the diastolic pressure. A reading of 120/80 is said as "120 over 80." The top number is the pressure when the heart beats. The bottom number is the pressure when the heart rests between beats.High blood pressure (also known as hypertension) occurs when the force of blood against the artery walls increases enough to cause damage. A single high reading may not mean high blood pressure. A diagnosis of high blood pressure should always be confirmed on follow-up visits to the doctor or clinic. As the blood filtering units of the body, kidneys are prone to problems with blood flow and blood vessels, such high blood pressure. High blood pressure is the second most common cause of kidney disease. High blood pressure may also happen as a result of kidney disease. Keeping blood pressure under control is important to lower risk of kidney disease, and heart disease.
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