Professional
Technical
IVT
distributive shock
Shock characterized by widespread vasodilation and increased vascular permeability, commonly seen in sepsis.
Full Definition
Distributive shock is a form of circulatory shock where the primary problem is widespread vasodilation and increased capillary permeability, leading to relative hypovolemia despite normal or increased cardiac output. It is most commonly caused by sepsis, but can also result from anaphylaxis, neurogenic causes, or drug reactions. The hallmark is warm extremities with bounding pulses despite hypotension. Treatment focuses on fluid resuscitation and vasopressor support while addressing the underlying cause.
Usage
Usage note: Distinguish from septic shock, which is a subset of distributive shock.
In Context
- "The patient presented with distributive shock secondary to gram-negative bacteremia." — ICU progress note
- "Despite adequate fluid resuscitation, the distributive shock required high-dose norepinephrine." — Critical care consultation
Also known as
vasodilatory shock
warm shock
Contrasted with
cardiogenic shock
hypovolemic shock
Don't confuse with
septic shock
neurogenic shock