What is the normal range for diastolic blood pressure?

Diastolic blood pressure refers to the pressure in the arteries when the heart rests between beats, and it is a crucial component of overall blood pressure measurements. The normal range for diastolic blood pressure is generally considered to be between 60 and 80 mmHg, although values up to 90 mmHg can still be within a normal context for some individuals, particularly depending on overall health, age, and other physiological factors.

Option C accurately reflects this normal range. Values falling below 60 mmHg, as suggested by some of the other options, could indicate potential health issues, such as hypotension, which can lead to inadequate blood flow to organs. Furthermore, consistently higher diastolic values approaching or exceeding 90 mmHg may also suggest hypertension and associated risks for cardiovascular issues, making option C the most appropriate range when considering the wider context of health guidelines for blood pressure management. It is vital for healthcare professionals to understand and recognize these distinctions when assessing patient blood pressure readings.