FISDAP Paramedic Trauma Practice Exam 2025 - Free Paramedic Trauma Practice Questions and Study Guide

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Which vital sign is most indicative of shock in a trauma patient?

Increased heart rate

Decreased blood pressure (BP)

In the context of trauma, blood pressure is a crucial vital sign when assessing for shock. A decreased blood pressure indicates a reduced volume or efficiency of blood circulation, which can occur due to significant blood loss as a result of trauma or other factors causing hypovolemic shock. This reduction in blood pressure reflects the body's struggle to maintain adequate circulation and perfusion of vital organs.

While an increased heart rate can also suggest shock, it is often a compensatory response to maintain blood flow despite lower blood pressure. Similarly, an elevated respiratory rate can be a response to various conditions, including pain, anxiety, or hypoxia. An altered level of consciousness may indicate severe systemic effects of shock but is more of a secondary finding. Therefore, decreased blood pressure stands out as the most direct and reliable indicator of shock in trauma patients, as it reflects a critical failure to adequately perfuse tissues.

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Elevated respiratory rate

Altered level of consciousness

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