Circulatory Shock and Venous Pooling

This set of flashcards covers key terms and concepts related to venous pooling and different types of circulatory shock.

Venous Pooling

A condition where blood accumulates in the lower body, leading to inadequate blood flow to the heart.

Circulatory Shock

A state in which cardiac output is insufficient to meet the body's metabolic needs.

Cardiogenic Shock

A type of shock caused by inadequate pumping by the heart, often due to myocardial infarction.

Low Venous Return Shock (LVR Shock)

A type of shock where cardiac output is low because too little blood returns to the heart.

Hypovolemic Shock

The most common form of LVR shock, produced by a loss of blood volume due to hemorrhage or dehydration.

Obstructive Venous Return Shock

Shock that occurs when an object compresses a vein and impedes blood flow.

Urogenic Shock

A form of venous pooling shock resulting from a sudden loss of vasomotor tone allowing the vessels to dilate.

Septic Shock

Shock caused by bacterial toxins that trigger vasodilation and increased capillary permeability.

Anaphylactic Shock

Shock resulting from an allergic reaction that triggers vasodilation and increased capillary permeability.

Compensated Shock

A state where homeostatic mechanisms help recover from shock without decline.

Decompensated Shock

A state where shock progresses and becomes life-threatening, often involving positive feedback loops.

Disseminated Intravascular Coagulation (DIC)

A condition where slow blood circulation leads to blood clotting throughout the body.

Sympathetic Nervous System

The part of the autonomic nervous system that stimulates the body's 'fight or flight' response, helping to counteract shock.