What is a characteristic symptom of tension pneumothorax?

A characteristic symptom of tension pneumothorax is the presence of needle decompression on the affected side. Tension pneumothorax occurs when air enters the pleural space and cannot escape, leading to increased pressure that collapses the lung on the affected side and shifts mediastinal structures. This condition can be life-threatening and requires immediate intervention.

Needle decompression is a crucial emergency procedure performed to relieve the pressure and restore normal intrathoracic pressure. This is typically done at the second intercostal space in the midclavicular line. By performing this maneuver, healthcare providers can alleviate the pressure quickly, allowing the lung to re-expand and improve respiratory function.

In contrast, the other options are less indicative of tension pneumothorax. Chest wall bruising can be associated with trauma but does not specifically diagnose tension pneumothorax and may not occur in all cases. Difficulty in swallowing is unrelated to this condition and suggests a different underlying issue, likely involving the esophagus or surrounding structures. Fever and chills are generally signs of infection and are not characteristic symptoms of a tension pneumothorax, which is an acute medical emergency primarily related to changes in pleural pressure. Therefore, needle decompression is the most relevant and specific