Hemodynamic Measurements PDF
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Tamethia Perkins
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Summary
These notes cover hemodynamic measurements, including direct and indirect measurements in critically ill patients. The material includes calculations and tables of various measurements. The presentation emphasizes the importance of these measurements in patient care.
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HEMODYNAMIC MEASUREMENTS Tamethia Perkins MS, RRT-NPS, RRT-ACCS RT 3005/6005 Hemodynamics is the study of forces that affect blood flow. In the critically ill patient a catheter placed in the PA (PA catheter) can provide very useful information. Direct mea...
HEMODYNAMIC MEASUREMENTS Tamethia Perkins MS, RRT-NPS, RRT-ACCS RT 3005/6005 Hemodynamics is the study of forces that affect blood flow. In the critically ill patient a catheter placed in the PA (PA catheter) can provide very useful information. Direct measurements can provide information to calculate indirect measurements. Some measurements are “indexed’ by BSA. Size of the individuals. PA catheter DIRECT MEASUREMENTS STROKE VOLUME SV= CO/HR SVI = SV/BSA CARDIAC INDEX CI = CO/BSA RVSWI and LVSWI Amount of work required by the ventricles to pump blood. LVSWI = SVI x (PA-CVP) x 0.0136 g/mL = gm/m2 VASCULAR R PVR = [(PA – PCWP)/CO] x 80 SVR = [(MAP – CVP)/CO] x 80 PAP measurements PAP measurements Computed values PVR high PVR high PVR low
