An adult client receiving volume-controlled mechanical ventilation suddenly exhibits profound clinical deterioration. The ventilator triggers continuous high peak airway pressure alarms. Simultaneously, the cardiac monitor displays a heart rate of beats per minute, and the arterial line shows a precipitous blood pressure drop to . Arrange the following emergency nursing actions in the correct chronological sequence for managing this acute crisis.
- 1Detach the endotracheal tube from the mechanical ventilator and manually ventilate using a resuscitation bag attached to oxygen.
- 2Auscultate bilateral lung fields and assess for asymmetric chest wall expansion and tracheal deviation.
- 3Instruct a colleague to notify the critical care provider while preparing a -gauge over-the-needle catheter for emergency pleural decompression.
- 4Assemble and prime a sterile closed water-seal chest drainage unit in preparation for definitive tube thoracostomy.
- 5Coordinate a bedside portable chest radiograph to evaluate pulmonary re-expansion and verify correct catheter positioning.
Answer
The correct chronological sequence is to first detach the client from the ventilator and manually ventilate, then assess the lung fields for signs of tension pneumothorax. This is followed by preparing for immediate needle decompression, assembling a chest drainage unit for definitive treatment, and finally obtaining a post-procedure chest radiograph.
When a mechanically ventilated client develops sudden high peak airway pressures accompanied by hemodynamic collapse (tachycardia and severe hypotension), a tension pneumothorax causing obstructive shock must be suspected immediately. The evidence-based DOPE mnemonic (Displacement, Obstruction, Pneumothorax, Equipment) guides the initial approach. The absolute first action is to disconnect the ventilator and manually ventilate using a bag-valve-mask with oxygen. This safely removes equipment malfunction as a variable, halts forced barotrauma, and allows the nurse to feel for severe resistance (stiff compliance). Second, the nurse rapidly assesses for asymmetric breath sounds and tracheal deviation to clinically confirm the complication. Third, once tension pneumothorax is identified, the priority shifts to assisting with immediate, life-saving needle decompression to relieve intrapleural pressure and restore cardiac output. Fourth, a chest tube drainage unit is prepared for definitive, continuous evacuation of the pleural space. Finally, diagnostic imaging is obtained to evaluate the effectiveness of the interventions and verify correct tube placement.
Step-by-Step Solution
Key Concept
Prioritization of Respiratory Emergencies and Obstructive Shock Management