Emergency medical services bring a 19-year-old male to the emergency department after he was involved in a high-speed motorcycle collision. The patient is restless, diaphoretic, and gasping for air. Vital signs show a blood pressure of 76/40 mm Hg, heart rate of 142/min, and respiratory rate of 34/min. Pulse oximetry indicates 82% on room air. Physical examination demonstrates significant bruising over the right hemithorax, markedly decreased breath sounds on the right side, and engorged jugular veins. The trachea appears shifted toward the left side of the neck. Which of the following is the most appropriate next step in the management of this patient?
- AObtain a portable chest radiograph
- Perform needle thoracostomy of the right chestAnswer
- CPerform endotracheal intubation
- DObtain a computed tomography scan of the chest
- ERequest an emergent thoracic surgery consultation
Answer
The most appropriate next step is to perform needle thoracostomy of the right chest.
The correct action is to immediately perform needle thoracostomy. This patient presents with the classic triad of a tension pneumothorax: absent breath sounds on the affected side, severe hypotension, and distended neck veins, along with tracheal deviation. Tension pneumothorax creates a one-way valve effect, trapping air in the pleural space, which shifts the mediastinum and severely impairs venous return to the heart, leading to obstructive shock. Because this is a life-threatening emergency, it is a purely clinical diagnosis. The appropriate initial management is immediate needle decompression (typically in the 2nd intercostal space at the midclavicular line or the 4th or 5th intercostal space at the anterior axillary line), followed by chest tube placement. Waiting for imaging is strictly contraindicated.
Step-by-Step Solution
Key Concept
Tension pneumothorax is a clinical diagnosis requiring immediate bedside decompression (e.g., needle thoracostomy) before obtaining confirmatory imaging.