Final answer:
The difference between the apical and radial pulse is known as the pulse deficit, not to be confused with pulse pressure, which is the difference between systolic and diastolic pressures.
Step-by-step explanation:
The difference between the apical and radial pulse is called the pulse deficit. This term refers to any discrepancy between the number of heartbeats heard at the apex of the heart (apical pulse) and the number of pulses felt over the radial artery (radial pulse) over the same period of time.
Pulse pressure, on the other hand, is the difference between systolic and diastolic blood pressures. For example, a normal adult blood pressure reading of 120/80 mm Hg indicates a systolic pressure of 120 mm Hg and a diastolic pressure of 80 mm Hg, resulting in a pulse pressure of 40 mm Hg. Pulse pressure reflects the force that the heart generates with each contraction.