Blood Pressure Formula:
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Definition: This calculator determines the blood pressure ratio and category based on systolic and diastolic measurements.
Purpose: It helps healthcare professionals and individuals assess blood pressure readings and understand their significance.
The calculator uses the formula:
Where:
Explanation: The systolic pressure is divided by diastolic pressure to get the BP ratio, which can indicate cardiovascular risk.
Details: Proper blood pressure assessment helps identify hypertension risks, guide treatment decisions, and monitor cardiovascular health.
Tips: Enter the systolic and diastolic pressures in mmHg. Both values must be > 0. The calculator will provide the ratio and clinical category.
Q1: What's a normal blood pressure ratio?
A: A ratio around 1.5 is typical (e.g., 120/80 = 1.5). Higher ratios may indicate increased cardiovascular risk.
Q2: How is blood pressure measured manually?
A: Using a sphygmomanometer and stethoscope by detecting Korotkoff sounds during cuff deflation.
Q3: What are the standard BP categories?
A: Normal (<120/<80), Elevated (120-129/<80), Stage 1 (130-139/80-89), Stage 2 (≥140/≥90).
Q4: Why measure both SBP and DBP?
A: Both provide important information - SBP reflects arterial pressure during heartbeats, DBP between beats.
Q5: How often should BP be checked?
A: Adults should have annual checks; more frequently if elevated or with risk factors.