What is the immediate treatment for suspected tension pneumothorax?

• A. Needle decompression
• B. Chest tube insertion
• C. Apply cold pack
• D. Observe only

Answer: (A)

When air builds up under high pressure in the pleural space, it collapses the affected lung and presses on the heart and great vessels, rapidly compromising circulation. The fastest way to reverse this life-threatening pressure is to relieve it right away with needle decompression. Inserting a large-bore needle into the chest allows trapped air to escape, which re-expands the lung and improves venous return to the heart, stabilizing the patient while a chest tube is arranged for definitive drainage and re-expansion. The other options don’t address the dangerous pressure: a cold pack doesn’t relieve the pneumothorax, and simply observing would miss the rapidly deteriorating physiology. Chest tube insertion is needed for ongoing management after decompression, but the immediate action is to decompress with a needle.