Frequently Asked Questions
What changed in the 2017 AHA guidelines?
The 2017 AHA/ACC guidelines lowered the hypertension threshold from 140/90 to 130/80 mmHg and eliminated the former 'prehypertension' category, replacing it with 'elevated' and 'Stage 1 hypertension.' This change means more people are classified as hypertensive, reflecting evidence that cardiovascular risk rises continuously above 115/75 mmHg.
What is white-coat hypertension?
White-coat hypertension is an elevation in blood pressure that occurs in a clinical setting but not at home, likely due to anxiety. It affects 15-30% of people with apparent office hypertension. Home monitoring over 7 days, or a 24-hour ambulatory monitor, can distinguish white-coat from true hypertension.
What is the difference between primary and secondary hypertension?
Primary (essential) hypertension has no single identifiable cause and accounts for about 95% of cases. Secondary hypertension has an identifiable cause such as kidney disease, primary aldosteronism, sleep apnea, or thyroid disorders. Secondary hypertension should be suspected in young patients, those with resistant hypertension, or those with sudden onset.
How often should I check my blood pressure?
If your blood pressure is normal, a check once every 1-2 years at a healthcare visit is typically sufficient. If it is elevated or you are being treated for hypertension, daily home monitoring (morning and evening) for a week before each clinical appointment provides valuable trend data. Share the log with your provider.
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Health & Medical Disclaimer: General information only. Not medical advice.
This calculator provides general health information only and is not medical advice. Results do not replace professional medical evaluation or diagnosis. Consult a licensed healthcare provider before making health decisions. Always seek immediate medical attention for emergencies.