Which blood pressure reading qualifies as hypertension risk factor?

A systolic blood pressure reading greater than 140 mmHg is a key indicator of hypertension, which is defined as having elevated blood pressure readings that can lead to increased risk for cardiovascular diseases and other health issues. In the classification of blood pressure, values above 140 mmHg in the systolic measurement denote Stage 1 hypertension, while values above 180 mmHg indicate Stage 2 hypertension. Recognizing borderline or elevated systolic figures is crucial for early intervention and management of health risks associated with high blood pressure. This threshold is part of the clinical guidelines that inform assessments in healthcare settings.

The other options do not signify hypertension when assessed based on clinical guidelines. For example, a diastolic reading greater than 100 mmHg by itself does indicate hypertension, but systolic readings have a more well-defined risk threshold for diagnosing hypertension. Having both readings below normal limits or a systolic reading less than 120 mmHg indicates healthy blood pressure levels, thus posing no hypertension risk.