Chapter 3: Hypertension and cholesterol Understanding and controlling hypertension High blood pressure, also called hypertension, occurs when blood pushes too hard against artery walls as it travels through the arteries. This damages the lining of the blood vessels. The blood pressure reading is written as two numbers, the systolic pressure (the first, or “top” number) and the diastolic pressure (the second, or “bottom” number). Systolic is the measure of pressure when your heart beats (contracts) and blood flow is strongest. Diastolic is the measure of the pressure in the arteries when the heart relaxes between beats. If your blood pressure is 120/80 or higher, you’re at risk. High blood pressure raises your risk of heart attack and especially of stroke. 16 Blood pressure is considered normal if it’s less than 120/80. Pressure between 120-139/80-89 is pre-hypertension; 140-159/90-99 is stage 1 hypertension; and greater than 159/99 is stage 2 hypertension.
P854 Acute Coronary Syndrome
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