Certified Transport Registered Nurse Certification Practice Exam

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Prepare for the Certified Transport Registered Nurse Test. Use flashcards and multiple choice questions with hints and explanations. Equip yourself for success in your certification exam!

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What does the patient control in Pressure Support Ventilation (PSV)?

The rate and tidal volume only
The inspiratory time only
The rate, inspiratory time, and tidal volume
The oxygen concentration

The correct answer is: The rate, inspiratory time, and tidal volume

In Pressure Support Ventilation (PSV), the patient exerts control over several parameters, including the rate of breaths, the inspiratory time, and the tidal volume. This mode of ventilation is designed to support patients who are capable of initiating their own breaths but need assistance with the breathing process. When a patient initiates a breath during PSV, the ventilator delivers a preset amount of pressure to help inflate their lungs. The patient can also determine how long to inhale, which influences the inspiratory time. Furthermore, they have a direct effect on the tidal volume because the deeper the breath they take, the greater the volume they can draw in. In this way, PSV promotes more natural breathing patterns while ensuring the patient receives assistance to maintain adequate ventilation. In contrast to the other choices, which focus on more restrictive parameters, this comprehensive control enhances patient comfort and enables better synchronization between the patient and the ventilator, making it particularly beneficial during weaning from mechanical ventilation.