TCAR Education Programs, Stephen Von Weller 1:1:1 transfusion The process of reapproximating whole blood by transfusing red cells, platelets, and plasma in a near-normal ratio. Also known as close ratio resuscitation, balanced resuscitation, ratio-balanced compo... # 3 June 2026
TCAR Education Programs, Stephen Von Weller 3rd spacing Excess fluid in the interstitial space leading to edema. Occurs when the capillaries are leaky.... # 3 June 2026
TCAR Education Programs, Stephen Von Weller A:a gradient See Alveolar:arterial gradient.... A 3 June 2026
TCAR Education Programs, Stephen Von Weller Abbreviated Injury Severity (AIS) Scores An anatomically-based scoring system that classifies each injury by body region. Scores range from 1 (mild injury) to 5 or 6, depending on body location. A score of 6 indicates an unsurvivable injury.... A 3 June 2026
TCAR Education Programs, Stephen Von Weller Abdominal compartment pressure The pressure inside the abdominal cavity. Pressure is elevated in patients with intra-abdominal hypertension and abdominal compartment syndrome. Abdominal compartment pressure (a.k.a. intra-abdominal ... A 3 June 2026
TCAR Education Programs, Stephen Von Weller Abdominal compartment syndrome (ACS) Excess edema, blood, or free fluid in the abdominal compartment elevates intra-abdominal pressure. High intra-abdominal pressure reduces organ perfusion, which leads to ischemia, organ failure, and de... A 3 June 2026
TCAR Education Programs, Stephen Von Weller Abduction Movement of a body part away from the central axis of the body,... A 3 June 2026
TCAR Education Programs, Stephen Von Weller ABG sampling Collection of an arterial blood sample either through an arterial puncture ("stick") or an indwelling arterial line. Used for arterial blood gas measurement (PaO2, PCO2, pH, and base deficit).... A 3 June 2026
TCAR Education Programs, Stephen Von Weller Accelerated fibrinolysis Markedly enhanced fibrinolytic activity, resulting in increased, sometimes catastrophic, coagulopathic bleeding. In trauma patients, accelerated fibrinolysis is a component of trauma-induced coagulopa... A 3 June 2026
