Which statement best describes diastolic pressure?

Which statement best describes diastolic pressure?

• A. Pressure in the arteries during cardiac relaxation
• B. Maximum pressure during contraction
• C. Pulse pressure difference
• D. Blood flow velocity

Answer: (A)

Diastolic pressure is the arterial pressure during the heart’s relaxation phase, when the ventricles fill with blood. It represents the minimum pressure in the arteries over the cardiac cycle and shows how much pressure the arterial system maintains when the heart is at rest between beats. This distinguishes it from systolic pressure, which is the peak pressure during contraction. The pulse pressure is simply the difference between systolic and diastolic values, not the diastolic value itself. Blood flow velocity, while related to pressure, is about how fast blood moves and depends on pressure gradients and resistance, not the specific diastolic pressure measurement. For a reading like 120/80 mmHg, the diastolic pressure is 80 mmHg.

Diastolic pressure is the arterial pressure during the heart’s relaxation phase, when the ventricles fill with blood. It represents the minimum pressure in the arteries over the cardiac cycle and shows how much pressure the arterial system maintains when the heart is at rest between beats. This distinguishes it from systolic pressure, which is the peak pressure during contraction. The pulse pressure is simply the difference between systolic and diastolic values, not the diastolic value itself. Blood flow velocity, while related to pressure, is about how fast blood moves and depends on pressure gradients and resistance, not the specific diastolic pressure measurement. For a reading like 120/80 mmHg, the diastolic pressure is 80 mmHg.