The Nurse Is Preparing to Obtain a Right Atrial Pressure

The nurse is preparing to obtain a right atrial pressure (RAP/CVP) reading.What are the most appropriate nursing actions? (Select all that apply.)

A) Compare measured pressures with other physiological parameters.
B) Flush the central venous catheter with 20 mL of sterile saline.
C) Inflate the balloon with 3 mL of air and record the pressure tracing.
D) Obtain the right atrial pressure measurement during end exhalation.
E) Zero reference the transducer system at the level of the phlebostatic axis.