physiologic exhaustion
State of severe metabolic decompensation where continued surgical intervention poses prohibitive risk.
Full Definition
Physiologic exhaustion describes a critical state where a patient's metabolic reserves are depleted and normal compensatory mechanisms have failed, making continued or prolonged surgical intervention life-threatening. This condition is characterized by the development of hypothermia, metabolic acidosis, and coagulopathy - collectively known as the 'lethal triad.' In acute care surgery, recognition of physiologic exhaustion is crucial for determining when to abort or abbreviate procedures in favor of damage control techniques. Signs include core temperature below 35°C, pH less than 7.2, base deficit greater than 15, and clinically evident coagulopathy. Recovery requires intensive care support, aggressive warming, correction of acidosis, and blood product resuscitation.
Usage
Usage note: More specific than general 'shock' - refers specifically to metabolic failure rather than just hemodynamic compromise.
In Context
- "Evidence of physiologic exhaustion prompted immediate damage control and ICU transfer." — surgical intensive care note
- "The patient showed signs of physiologic exhaustion with core temperature of 34°C and worsening acidosis." — intraoperative anesthesia record