A 45-year-old male patient presents to the emergency department with complaints of chest pain and shortness of breath. Upon assessment, the nurse notes an elevated heart rate of 115 beats per minute and a blood pressure reading of 90/60 mmHg. The healthcare provider orders a central venous pressure (CVP) measurement. The normal range for CVP is typically between 2-6 mmHg. Based on this physiological assessment, the nurse must document the patient's hemodynamic status. The CVP can indicate the patient's _____.