Hemodynamic Measurement Terminology

There are a number of hemodynamic terms that you will need to understand in order to properly interpret the hemodynamic measurements.

The following table illustrates common values associated with a hemodynamic printout.

Normal value
Blood Pressure

Systolic (SBP)

90-140 mmHg

Diastolic (DBP)


Mean Arterial Pressure (MAP)

70 - 100 mm Hg
Cardiac Index (CI)
2.5-4 L/min/m2
Cardiac Output (CO)
4-8 L/min

Central Venous Pressure (CVP) (also known as Right Atrial Pressure (RA))

2-6 mmHg
Pulmonary Artery Pressure (PA)
Systolic 20-30 mmHg (PAS)
Diastolic 8-12 mmHg (PAD)
Mean 25 mmHg (PAM)
Pulmonary Capillary Wedge Pressure (PWCP)
4-12 mmHg
Pulmonary Vascular Resistance (PVR)
37-250 dynes/sec/cm5
Right Ventricular Pressure (RV)
Systolic-20-30 mmHg
Diastolic 0-5 mmHg
Stroke Index (SI)
25 - 45 ml/m2
Stroke Volume (SV)
50 - 100 ml
Systemic Vascular Resistance (SVR)
800-1200 dynes/sec/cm5

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Afterload is increased if the circulating blood is concentrated and/or if systemic blood vessels are constricted.


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After a significant hemorrhage, preload will be increased.