To evaluate the hemodynamic response to fluid therapy, medication and other treatments. To obtain accurate central vascular pressures in the presence of low cardiac output. To obtain mixed venous blood samples. To measure cardiac output. Check for signed informed consent if not an emergency.
All invasive procedures require consent.
Obtain vital signs and ECG strip. Serves as baseline. Check security and position of electrodes. Ensure good IV access in place. Ensure all tubing and ports clear of air.