Final answer:
Option B. The nurse should prepare for the insertion of a chest tube first, as it is the immediate treatment needed to address a spontaneous pneumothorax in a pre-term baby, allowing the lung to re-expand.
Step-by-step explanation:
If a pre-term baby develops nasal flaring, cyanosis, and diminished breath sounds on one side and is diagnosed with a spontaneous pneumothorax, the nurse should prepare for the insertion of a chest tube first. This procedure helps to remove the air from the pleural space, allowing the lung to re-expand. While cardiopulmonary resuscitation (CPR) is critical when a patient is in cardiac arrest, it is not the first choice in this scenario if the baby is not in cardiac arrest. Oxygen therapy and assisted ventilation may be supportive treatments to manage the baby's respiratory needs but addressing the pneumothorax directly with a chest tube is the priority.
If a pre-term baby develops nasal flaring, cyanosis, and diminished breath sounds on one side, the provider's diagnosis of spontaneous pneumothorax indicates that there is a collection of air in the pleural space that is causing the lung to collapse. To treat this condition, the nurse should prepare for insertion of a chest tube as the first procedure.