Pilot Study for the SQUEEZE Trial

"Tier 1: Initiate IV/IO vasoactive medication infusion support immediately. Further IV/IO isotonic fluid bolus therapy \[crystalloid (0.9% Normal Saline or Ringers Lactate) or colloid (5% Albumin)\] should be avoided; small volume isotonic fluid boluses \[5-10 mL/kg (250-500 mL for participants ≥ 50 kg)\] may be provided if required due to A. Clinically unacceptable delay in ability to initiate vasoactive medication infusion(s) and/or 2. Documented intravascular hypovolemia.~Tier 2: Vasoactive medication(s) should be preferentially titrated/escalated to achieve recommended ACCM hemodynamic goals. Further IV/IO isotonic fluid bolus therapy \[crystalloid (0.9% Normal Saline or Ringers Lactate) or colloid (5% Albumin)\] should be avoided; small volume isotonic fluid boluses \[5-10 mL/kg (250-500 mL for participants ≥ 50 kg)\] may be provided if required due to A. Documented intravascular hypovolemia.~Intervention end: Patient is free from vasoactive medication support and shock is reversed."