Sandbox/001

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Circulatory shock

Definition

Shock is the clinical expression of circulatory failure that results in inadequate cellular oxygen utilization.

Causes

Shock is a life-threatening condition and must be treated as such irrespective of the causes.

Classification

Hemodynamic Profiles of Shock

Type of Shock		CO	SVR	PCWP	CVP	SVO2
Cardiogenic	Acute Ventricular Septal Defect	↓↓	↑	N — ↑	↑↑	↑ — ↑↑
	Acute Mitral Regurgitation	↓↓	↑	↑↑	↑ — ↑↑	↓
	Myocardial Infarction	↓↓	↑	↑↑	↑↑	↓
Obstructive	Pulmonary Embolism	↓↓	↑	N — ↓	↑↑	↓
	Cardiac Tamponade	↓ — ↓↓	↑	↑↑	↑↑	↓
Distributive	Septic Shock	N — ↑↑	↓ — ↓↓	N — ↓	N — ↓	↑ — ↑↑
	Anaphylactic Shock	N — ↑↑	↓ — ↓↓	N — ↓	N — ↓	↑ — ↑↑
Hypovolemic	Volume Depletion	↓↓	↑	↓↓	↓↓	↓

Management

Symptoms ❑ Altered mental status ❑ Cyanosis ❑ Tachypnea

Signs ❑ Hypotension ❑ Oliguria ❑ Tachycardia

Labs ❑ CBC/DC/Electrolytes ❑ PT/PTT ❑ Lactate ❑ Arterial blood gas