Rosh Emergency Medicine Practice Test 2025 - Free Emergency Medicine Practice Questions and Study Guide

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Question: 1 / 400

Which type of shock is characterized by decreased preload, cardiac output, and increased afterload?

Cardiogenic shock

Obstructive shock

Hypovolemic shock

The type of shock characterized by decreased preload, decreased cardiac output, and increased afterload is actually obstructive shock. In obstructive shock, there are physical obstructions that prevent the heart from filling adequately (decreased preload) and subsequently decrease cardiac output. Additionally, conditions such as tension pneumothorax or cardiac tamponade can increase afterload as they restrict the heart’s ability to pump effectively.

Hypovolemic shock is primarily due to significant fluid loss, which leads to decreased preload but typically presents with decreased cardiac output rather than increased afterload. Cardiogenic shock generally involves decreased cardiac output due to heart function failure, while neurogenic shock is characterized by vasodilation and typically does not present with increased afterload.

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Neurogenic shock

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