Certified Hyperbaric Technologist Practice Test

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Prepare for the Certified Hyperbaric Technologist Test with comprehensive study materials including flashcards and multiple choice questions. Each question comes with detailed explanations and hints to aid your understanding. Get exam-ready now!

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What is the consequence of the cuff of an ET tube losing its seal in a hyperbaric chamber?

Increased pressure in the chamber
Dislodgement of the tube
Improved ventilation
Compression of the lungs

The correct answer is: Dislodgement of the tube

When the cuff of an endotracheal (ET) tube loses its seal in a hyperbaric chamber, the primary consequence is the dislodgement of the tube. The cuff is designed to create a seal within the trachea, ensuring that gas can be delivered effectively to the patient and preventing the aspiration of secretions. If the cuff fails to maintain its seal, the pressure differential between the positive pressure in the hyperbaric chamber and the ambient pressure in the trachea can lead to an inability to ventilate adequately. This may result in the ET tube being pushed out of position, as the loss of pressure support could allow the tube to migrate or slide out of the trachea. Maintaining the integrity of the cuff is essential to ensure that mechanical ventilation can be performed safely and effectively in a hyperbaric environment. If the cuff loses its integrity, not only is ventilation compromised, but it can also increase the risk of complications such as aspiration or hypoventilation, demanding immediate attention to restore proper airway management.