Blood Pressure Is Recorded With

Blood pressure is recorded with:

A) the diastolic value over the systolic value.
B) systolic pressure being the point at which a sharp tapping sound is heard.
C) diastolic pressure reflecting the amount of pressure required for the left ventricle of the heart to compress or push oxygenated blood out into the blood vessels.
D) the systolic pressure being the second and lower number recorded.