Which of the following best defines systolic and diastolic blood pressures and states the target normal value and diagnostic threshold for hypertension?

Systolic is the pressure during contraction and diastolic during relaxation, the clinical target is under 110/70 mmHg for adults, and hypertension is diagnosed at any single reading above 160/100 mmHg unless secondary causes are excluded by additional testing over time.

Systolic is the pressure when the heart relaxes and fills, diastolic is when it contracts to eject blood, the target is under 140/90 mmHg and hypertension is diagnosed only when repeated measures exceed 140/90 on multiple days, making the clinical threshold and measurement protocol critical for diagnosis.

Systolic equals the average systemic arterial pressure, diastolic equals pulmonary arterial pressure, and normal values are identical for all ages at 120/80 mmHg whereas hypertension is an arbitrary label used when patients report headaches or visual changes regardless of numerical values.

Systolic: pressure during heart contraction; diastolic: pressure during relaxation; target <120/80 mmHg; hypertension ≥130/80 mmHg.