A 45-year-old construction worker is brought to the emergency department after falling from scaffolding and landing on his left side. He presents with severe left-sided chest pain, shortness of breath, and decreased breath sounds on the left side. Chest X-ray reveals a pneumothorax with 40% lung collapse. What is the priority nursing intervention?

A pneumothorax with 40% lung collapse and respiratory distress requires immediate chest tube insertion to re-expand the lung and prevent tension pneumothorax. Other options are supportive but not definitive for this significant collapse.

Core Nursing Explanation Key Concept Analysis: This question assesses the priority nursing intervention for a Tension pneumothorax or a large, symptomatic simple pneumothorax. The core pathophysiology involves air entering the pleural space, causing the lung to collapse. This disrupts ventilation and can lead to life-threatening Mediastinal shift, which compresses the heart and great vessels, impairing cardiac output. The scenario describes a traumatic pneumothorax (from a fall) with significant symptoms (severe pain, dyspnea, decreased breath sounds) and a 40% lung collapse—this is not a small, asymptomatic pneumothorax.

Answer Rationale: Key Point! For a symptomatic pneumothorax with >25-30% collapse, the definitive treatment is Chest tube (thoracostomy tube) insertion to evacuate the air from the pleural space and allow the lung to re-expand. The nurse's priority is to prepare for this procedure. "Prepare" includes gathering the necessary equipment, setting up the drainage system (e.g., Pleur-evac), ensuring sterile supplies are ready, and providing patient education and support for the imminent procedure. This directly addresses the underlying problem.

Distractor Analysis: Watch out for confusion! While administering high-flow oxygen (Option 1) is a correct supportive measure (it helps reduce the partial pressure of nitrogen in the blood, promoting absorption of pleural air), it is not the definitive or priority intervention for a large, symptomatic collapse. It would be done concurrently or while preparing for the chest tube. Positioning in Trendelenburg (Option 3) is contraindicated as it would increase intra-abdominal pressure and potentially worsen respiratory distress; the semi-Fowler's position is preferred. Obtaining an ABG (Option 4) is an assessment tool to evaluate gas exchange, but it does not treat the cause of the problem. Treatment should not be delayed for diagnostic tests when the patient is in respiratory distress from a known cause.

Related Concepts: The priority follows the ABCs (Airway, Breathing, Circulation) framework. A pneumothorax directly threatens "Breathing." The nurse must intervene to restore adequate ventilation. Understanding the difference between a simple, tension, and open pneumothorax is crucial, as the urgency and specific interventions vary.

Nursing Clinical Practice Guide Clinical Scenario: You are the triage nurse in the ED. A 45-year-old male is rushed in, clutching his left chest, diaphoretic, and speaking in short phrases: "Can't... breathe... pain." His vitals are: HR 122, RR 32, SpO2 88% on room air. You note absent breath sounds on the left and hyperresonance to percussion. The physician orders "STAT chest tube insertion for left pneumothorax."

Nursing Intervention Strategy: 1. Immediate Action & Assessment: Apply a non-rebreather mask at 15 L/min while simultaneously calling for the chest tube tray and drainage system. Perform a focused respiratory assessment and ensure IV access is established. 2. Preparation for Procedure: Gather the chest tube insertion kit, sterile gloves, gown, drapes, lidocaine (as ordered), and the closed drainage system (e.g., Pleur-evac). Prime the system with sterile water as instructed to create the water seal. Set up a sterile field. 3. Patient Care During & After: Explain the procedure to the patient simply. Assist the physician during insertion. Once the tube is in place, secure it, connect it to the drainage system, and ensure it is bubbling (if an air leak is present) and that tidaling is observed in the water seal chamber. Monitor for continuous bubbling (which may indicate a system leak) and drainage amount/character. 4. Safety & Monitoring: Never clamp a chest tube unless specifically ordered for a brief moment (e.g., to change the system). Keep the drainage system below chest level. Monitor for signs of tension pneumothorax recurrence: sudden increased dyspnea, tracheal deviation, hypotension, distended neck veins.

Nursing Procedure & Medication Flow Chest Tube Management Steps: 1. Verify physician order and consent. 2. Gather equipment: Chest tube tray, drainage system, sterile water, occlusive dressing supplies. 3. Position patient: Semi-Fowler's or supine with arm raised behind head on affected side. 4. Administer analgesia/sedation as ordered. 5. Assist with sterile prep and drape. 6. After insertion, connect tube to drainage system. 7. Tape all connections. Secure tube to chest wall with a securement device. 8. Obtain a post-procedure chest X-ray to confirm placement and lung re-expansion. 9. Document: Time of insertion, size/location of tube, amount/character of initial drainage, patient response.

A Word from Your Senior Nurse: "In emergencies like this, your brain might scream 'Do everything at once!' But nursing prioritization is about doing the most critical thing first. A chest tube for a large pneumothorax is definitive—it fixes the problem. Oxygen and an ABG are important, but they're like putting a band-aid on a gushing wound while you wait for the surgeon. Your ability to quickly and efficiently prepare for lifesaving procedures, while keeping the patient calm and monitored, is what makes you an invaluable member of the trauma team. Always connect the pathophysiology (air in pleural space → lung collapse) to the intervention (remove the air)."