Hemodynamics and bp

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Blood Pressure (BP) • Hemodynamic • Pressure = Flow x Resistance – Flow (movement of fluids) – Resistance (vessels)

Transcript of Hemodynamics and bp

  • 1. Blood Pressure (BP) Hemodynamic Pressure = Flow x Resistance Flow (movement of fluids) Resistance (vessels)

2. Terms/ Concepts Blood Pressure = F x R Flow (Cardiac Output {CO}) x Resistance (vessel diameter) CO = HR x SVHeart Rate (HR) beats/minStroke Volume (SV)- blood ejected from Lventricle; ml/beat 3. Blood Pressure (BP) Systolic Pressure (SBP) Diastolic Pressure (DBP) Pulse Pressure (PP) PP = S - D Mean Arterial Pressure (MAP) Perfusion pressureMAP = CO x SVR (Systemic Vascular Resistance) orMAP = SBP + 2(DBP) 3 4. BP from L ventricle through circ 5. BP Product of Cardiac Output (CO) Systemic Vascular Resistance (SVR) Viscosity of blood Vessel rigidity Vessel radius Maintained by adjusting CO for SVR if SVR high- body decreases CO