Shock Classification and Differential Diagnosis

SHOCK

 • MAP <65, SBP <90, drop in SBP > 40

 • End-organ malperfusion

 • Lactate > 1.5

Distributive:

 • High CO / Low SVR

 • Sepsis, Anaphylaxis, Adrenal Insufficiency, Liver Failure, Toxins/Medications, Spinal Cord Injury

Cardiogenic:

 • Low CO / High SVR, JVP >8, CVP > 12

 • Myocardial Infarction, Decompensated CHF, Severe Valve Disease, Myocarditis, Arrhythmia

Obstructive:

 • Low CO / High SVR, JVP >8, CVP > 12

 • Pulmonary Embolism, Tension Pneumothorax, Cardiac Tamponade

Hypovolemic:

 • Low CO / High SVR, JVP < 6, CVP < 8

 • Blood Loss, GI Losses, Third Spacing, Extreme Dehydration



- Sophia Hayes MD @Sophia_Hayes_MD



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