Systemic Vascular Resistance
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Mean Art Pres (mmHg)
RA Pres (mmHg)
C.O. (L/min)
R e s u l t s
dyne*sec/cm^5
? ? ?
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Systemic Vascular Resistance

Systemic Vascular Resistance (PVR) refers to the resistance in the systemic vasculature (excluding pulmonary vasculature) against which blood circulation must occur.

SVR is commonly used as a measure of left ventricular overload.

Formula:

Systemic Vascular Resistance in (dyne*sec)/cm5 = 80*(MAP - RAP)/C.O.

Where,

MAP = Mean Arterial Pressure

RAP = Right Atrial Pressure

C.O.= Cardiac Output

Normal values = 900-1300 (dyne*sec)/cm5.

Reference:

Cardiovascular Problems. In: Adam SK, Osborne S. Critical Care Nursing: Science and Practice. 2nd ed. New York, NY: Oxford University Press; 2005:159-206.