What is the first action taken in managing a patient with a suspected pneumothorax?

In the management of a patient with a suspected pneumothorax, the first action geared toward addressing the patient's respiratory compromise involves administering oxygen and preparing for chest decompression. A pneumothorax, which occurs when air enters the pleural space, can lead to significant respiratory distress and potential hypoxia. Therefore, providing supplemental oxygen helps to alleviate hypoxemia by increasing the amount of oxygen available to the patient.

Simultaneously, preparing for chest decompression is crucial as a tension pneumothorax, a possible complication, can rapidly lead to life-threatening conditions if not promptly addressed. In this situation, decompression can help release trapped air and restore pleural pressure, allowing the lungs to re-expand.

Other options, while important components of patient care, do not take precedence in the immediate management of pneumothorax. A physical examination can provide useful information but is not the first step in emergency management where immediate life-saving interventions are needed. Intubation is typically reserved for situations where the patient's airway is compromised or when they cannot breathe adequately on their own, which may not be the case in all pneumothorax instances. Administering intravenous fluids may be necessary in cases of significant hypovolemia or shock, but it is