Exam

Blood Volume

search

Blood Volume, Circulatory Volume

  • See Also
  1. Ventricular Preload
  2. Ventricular Afterload
  3. Cardiac Output (and Stroke Volume)
  4. Hypovolemic Shock
  5. Sodium and Water Hemostasis
  6. Total Body Water
  • Physiology
  1. Blood Volume
    1. Child: 80-90 ml/kg (Blood Volume is 8-9% of body weight)
    2. Adult: 70 ml/kg (Blood Volume is 7% of body weight)
  2. Blood Distribution
    1. Venous circuit contains 60-70% of the Blood Volume
      1. Venous Vasoconstriction is a key mechanism to stabilize Blood Pressure in fluid loss
    2. Arteries and arterioles hold 15% of Blood Volume
    3. Capillaries hold 5% of Blood Volume
  • Images
  1. Total Body Water
    1. TotalBodyWater.png
  2. Cardiac Cycle Volumes and Pressures (Wiggers Diagram)
    1. cvCardiacCycleWiggers.png