Which Principle Should the Nurse Remember When Planning Nursing Care

Multiple Choice

Which principle should the nurse remember when planning nursing care for a patient with heart problems? As stated by the Frank-Starling law,there is a direct relationship between the _____ of the blood in the heart at the end of diastole and the _____ of contraction during the next systole.

A) Pressure, duration
B) Volume, force
C) Viscosity, force
D) Viscosity, duration