PALS Provider Course

ALGORITHM FOR DISTRIBUTIVE SHOCK

Distributive shock, commonly caused by sepsis or anaphylaxis, involves abnormal vasodilation and maldistribution of blood flow, leading to inadequate tissue perfusion.

Signs of Distributive Shock:

  • Bounding pulses and warm extremities in early stages.
  • Hypotension and poor perfusion in late stages.
  • Altered mental status.

Management Algorithm:

  • Step 1: Administer high-flow oxygen.
  • Step 2: Establish vascular access and give 20 mL/kg fluid boluses.
  • Step 3: Administer vasopressors (e.g., epinephrine for anaphylaxis, norepinephrine for septic shock) if perfusion does not improve with fluids.
  • Step 4: Treat the underlying cause:
    • Sepsis: Start broad-spectrum antibiotics.
    • Anaphylaxis: Administer intramuscular epinephrine and adjunct therapies such as antihistamines and corticosteroids.

Timely interventions tailored to the underlying cause can rapidly stabilize distributive shock.