Blood pressure is determined by
a. estimating the pressure needed to close off an artery with an external pressure cuff.
b. estimating the degree of turbulence in a partly closed vessel.
c. listening carefully to the pulse.
d. measuring the force of contraction of the left ventricle.
e. measuring the size of the pulse.
Answer: a. estimating the pressure needed to close off an artery with an external pressure cuff.