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SBP Formula:
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Systolic Blood Pressure (SBP) is the pressure in your arteries when your heart beats. It's the top number in a blood pressure reading and represents the maximum pressure exerted when the heart contracts.
The calculator uses the simple formula:
Where:
Explanation: Pulse pressure is calculated as the difference between systolic and diastolic pressure. This calculator reverses that calculation to determine SBP when DBP and pulse pressure are known.
Details: Systolic blood pressure is a crucial indicator of cardiovascular health. Elevated SBP is a major risk factor for heart disease, stroke, and kidney problems. Monitoring SBP helps in early detection and management of hypertension.
Tips: Enter diastolic blood pressure and pulse pressure values in mmHg. Both values must be non-negative numbers. The calculator will compute the corresponding systolic blood pressure.
Q1: What is a normal systolic blood pressure range?
A: Normal SBP is typically below 120 mmHg. Readings between 120-129 mmHg are considered elevated, and 130 mmHg or higher indicates hypertension.
Q2: Why is systolic pressure important?
A: SBP tends to increase with age and is a stronger predictor of cardiovascular events than diastolic pressure in people over 50.
Q3: How often should blood pressure be checked?
A: Adults should have their blood pressure checked at least once every 2 years, or more frequently if they have risk factors for hypertension.
Q4: What factors can affect systolic blood pressure?
A: Factors include age, stress, physical activity, diet (especially sodium intake), weight, medications, and underlying health conditions.
Q5: When should I consult a doctor about my blood pressure?
A: Consult a healthcare provider if your systolic pressure consistently measures 130 mmHg or higher, or if you experience symptoms like headaches, dizziness, or vision changes along with high readings.