NREMT Paramedic Practice

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Prepare for the NREMT Paramedic Exam with comprehensive quizzes that cover essential topics, including patient assessment, treatment protocols, and emergency medical care. With multiple-choice questions and detailed explanations, you'll be ready to excel in your certification test.

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What can collect in a simple face mask if the flow rate is below 6 L/min?

Oxygen
Carbon dioxide
Hydrogen ions
Water vapor

The correct answer is: Carbon dioxide

In a simple face mask, when the flow rate is set below 6 liters per minute, carbon dioxide can collect within the mask. This occurs because the mask does not fully deliver fresh oxygen and also traps exhaled air, which contains a higher concentration of carbon dioxide. High-flow rates are essential to maintain adequate ventilation and prevent the rebreathing of carbon dioxide. At flow rates below the recommended threshold, the amount of oxygen delivered may not be sufficient to displace the exhaled gases effectively, leading to a buildup of carbon dioxide in the mask. This can create a hazardous situation for the patient, as rebreathing carbon dioxide can lead to respiratory acidosis or other complications. It's crucial to ensure that the flow rate is adequate to avoid these issues and to ensure proper oxygenation of the patient.