Q: What does the second number in a blood pressure reading measure?


Read this paragraph and choose the correct option from the provided answers:

Blood pressure is read as two numbers. The first number is the systolic pressure. The systolic pressure is the pressure on the blood vessels when the heart beats. This is the time when there is the highest pressure in the arteries. The diastolic pressure, which is the second number, is when your blood pressure is lowest, when the heart is resting between beats.

 Choices:

- external pressure

- optimal pressure

- epithelial pressure

- diastolic pressure


A:
diastolic pressure