Certified Respiratory Therapist Practice Exam

What action should be taken if high pressure is required to deliver volume in a mechanically ventilated patient?

1. Increase the ventilator settings

2. Reassess the ET tube for obstruction

3. Change patient positioning

4. Administer bronchodilators

The correct answer is: Reassess the ET tube for obstruction

Selecting to reassess the endotracheal (ET) tube for obstruction is crucial when high pressure is required to deliver volume in a mechanically ventilated patient, as this situation often indicates that there may be a blockage or narrowing within the airway. An obstruction could be caused by various factors such as mucus plugs, kinks in the tube, or even the presence of excessive secretions. Identifying and addressing an obstruction is essential because it directly impacts the patient's ability to ventilate effectively and compromises oxygenation. While adjusting ventilator settings, changing patient positioning, or administering bronchodilators can be relevant interventions in certain situations, they do not directly address the immediate concern of high pressure due to potential obstruction. Ensuring a clear airway is the first step in troubleshooting ventilation issues. Hence, ensuring the ET tube is clear is the most appropriate action to ensure adequate ventilation and prevent further complications.