Limits RegistryPUBLIC RECORD
Limits RegistryThe standard adult normal blood-pressure category is below 120 mmHg systolic and below 80 mmHg diastolic.
The question, scope, and sources behind this Registry record.
The standard adult normal blood-pressure category is below 120 mmHg systolic and below 80 mmHg diastolic.
Classify an adult office blood-pressure reading as normal when systolic and diastolic values are below the guideline thresholds.
Blood-pressure categories are clinical classification thresholds, not sharp biological discontinuities. Measurement posture, cuff size, repeated readings, medication, and clinical context are part of the specification.
World Health Organization data and guidelines — Normal adult blood-pressure thresholdChange a parameter to stress-test whether a proposed result is still inside the published specification. This is an audit aid, not a proof checker.
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The frontier as it changed over time.
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Permanent ID limitsregistry.com/limits/LR-004218
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Limits Registry. LR-004218. Normal adult blood-pressure threshold. 2026.