Mechanical Ventilation Chapter 5 Questions and Answers Already Passed

Mechanical Ventilation Chapter 5 Questions and Answers Already Passed A nurse is caring for a patient on mechanical ventilation in the assist-control mode. The nurse notices that the patient is taking spontaneous breaths at a rate of 10 breaths per minute, while the ventilator is set to deliver 12 breaths per minute. What will happen in this situation? The ventilator will assist the patient's spontaneous breaths, delivering the full tidal volume with each breath. A nurse is monitoring a patient on mechanical ventilation and notices that the patient's peak inspiratory pressure is increasing. What could be the most likely cause of this increase? The patient may be developing atelectasis or a blockage in the airway, increasing resistance to airflow. A nurse is caring for a patient with acute respiratory failure on a ventilator. The ventilator is set in the volume-controlled mode. What is the primary risk associated with this mode? The primary risk is the potential for barotrauma if the airway pressure becomes too high while delivering the set tidal volume. 2 A nurse is assessing a patient on mechanical ventilation with a positive end-expiratory pressure (PEEP) setting. The nurse understands that PEEP helps in which of the following ways? PEEP helps to maintain alveolar inflation, improve oxygenation, and prevent atelectasis during mechanical ventilation. A nurse is caring for a patient on mechanical ventilation in the pressure-controlled mode. What does this mode primarily control? Pressure-controlled mode primarily controls the pressure delivered to the lungs, ensuring it does not exceed a preset level, regardless of the tidal volume. A nurse is monitoring a patient’s blood gases while they are on mechanical ventilation. The nurse observes a decrease in the patient's pH and an increase in PaCO2. What should the nurse do first? The nurse should assess the ventilator settings, specifically the tidal volume and respiratory rate, to ensure the patient is receiving adequate ventilation. A nurse is caring for a patient on a mechanical ventilator in the assist-control mode. The patient’s spontaneous breathing rate is higher than the ventilator’s preset rate. What should the nurse expect the ventilator to do? 3 The ventilator will continue to deliver the set number of breaths, assisting the patient with full tidal volume during spontaneous breaths. A nurse is caring for a patient with acute respiratory distress syndrome (ARDS) who is on mechanical ventilation. What is a key strategy in managing ventilation for ARDS patients? Using low tidal volumes and higher levels of PEEP to reduce the risk of ventilator-induced lung injury. A nurse is caring for a patient on mechanical ventilation in the synchronized intermittent mandatory ventilation (SIMV) mode. The nurse understands that in SIMV, the patient can: The patient can initiate breaths spontaneously, and the ventilator will assist those breaths if needed, but the patient will also receive a set number of mandatory breaths. A nurse is caring for a patient on mechanical ventilation in the assist-control mode. The patient is showing signs of respiratory acidosis. What is the most appropriate intervention to address this issue? Increase the tidal volume or respiratory rate settings to improve ventilation and lower CO2 levels. 4 A nurse is assessing a patient’s ventilator settings and notices that the positive end-expiratory pressure (PEEP) is set to 12 cm H2O. What is the primary purpose of PEEP in mechanical ventilation? PEEP prevents the collapse of alveoli at the end of expiration, improving oxygenation and preventing atelectasis. A nurse is caring for a patient on mechanical ventilation and notes that the ventilator is in the volume-controlled mode. The nurse should be particularly concerned about: The risk of overdistention of the lungs, which can lead to barotrauma if the pressure required to deliver the set tidal volume exceeds safe limits. A nurse is caring for a patient with acute respiratory failure who is on mechanical ventilation. The nurse checks the patient’s tidal volume and notes it is set too low. What is the immediate concern with a low tidal volume setting?