Which number identifies the pulse pressure for a patient whose blood pressure reading is 134/78?

A. 134: This is the systolic pressure, not the pulse pressure. B. 212: Incorrect calculation (systolic + diastolic); not pulse pressure. C. 78: This is the diastolic pressure, not the pulse pressure. D. 56: Pulse pressure = systolic − diastolic = 134 − 78 = 56 mm Hg.