What measurement denotes the upper and lower range of blood pressure readings?

The measurement that denotes the upper and lower range of blood pressure readings is referred to as systolic and diastolic. Systolic pressure represents the higher number in a blood pressure reading and indicates the pressure in the arteries when the heart beats and pumps blood. In contrast, diastolic pressure is the lower number, which measures the pressure in the arteries when the heart is at rest between beats. This combination of readings provides a comprehensive view of an individual’s cardiovascular health, allowing healthcare professionals to assess whether blood pressure is at a normal level, elevated, or in a hypertension range.

The other options do not accurately reflect the standardized terminology related to blood pressure measurements, as they either misrepresent the relationship between the two key measurements or use terms that do not specifically pertain to blood pressure readings.