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Shock
1. Anand Kumar, MD Section of Critical Care Medicine Section of Infectious Diseases University of Manitoba, Winnipeg, Canada UMDNJ-Robert Wood Johnson Medical School Cooper Hospital, NJ Shock Pathophysiology, Classification, and Approach to Management
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12. Class I ClassII Class III Class IV Clinical Correlates of Hemorrhage American College of Surgeons, 1989 ↓ >75% ↓ 50-75% ↓ 20-50% ↓ 0-10% CI (L/min) Confused/lethargic Anxious/confused Mild anxiety Slight anxiety CNS mental status < 5 5 - 15 20 - 30 > 30 UO (mL/hr) > 34 30 - 40 20 - 30 14 - 20 Resp rate Delayed Delayed Delayed Normal Capillary refill Marked Marked Minimal Absent Orthostasis ↓ ↓ ↓ Normal or ↑ Pulse pressure ↓ ↓ Normal Normal Blood pressure > 140 > 120 > 100 < 100 Pulse rate > 40% 30 - 40% 15 - 30% > 15% Blood loss (% total) > 2000 1500 - 2000 750 - 1500 > 750 Blood loss (mL)
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23. Cardiovascular Performance Cardiac Function Venous Return Vascular Performance Microvascular Function Oxygen Unloading and Diffusion Cellular Energy Metabolism Determinants of Effective Tissue Perfusion