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INTRODUCTION: Acidosis with traumatic brain injury is a common and serious cause of consciousness disorders in emergency medicine. Extreme acidosis is significantly associated with high mortality (more than 67% if pH levels are under 7). Case Presentation . We describe the case of a 23-year-old man with unknown medical history who was found near the entrance of the emergency department sweat with a tachypnea (55 per minute), a lot of blood around him, and confused. The initial hypothesis was a hemorrhagic shock after a fight, but he did not have any hemodynamic trouble...

OBJECTIVE: Traditional vital sign thresholds reflect an increased risk of mortality, which may occur hours, days, or weeks following illness/injury, limiting immediate clinical significance to guide rescue therapy to avoid arrest. Our objective is to explore vital sign patterns prior to arrest due to shock. DESIGN: This retrospective observational analysis utilized physiological data from adult helicopter patients suffering provider-witnessed arrest. Pre-arrest values for systolic blood pressure (SBP), mean arterial pressure (MAP), heart rate (HR), shock index, and end-tidal carbon dioxide (EtCO2) were modeled against time using polynomial linear regression...