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You see a 30-year-old hockey player who “caught” a high velocity puck in his mid-sternum. Radiography clearly shows a sternal fracture. What next study (or studies) might you order?

What is the name of the keel-like septum at the bifurcation of the trachea?

A 78-year-old patient presents with an advanced cancer in the posterior mediastinum. The surgeons are in a dilemma as to how to manage the condition. Which of the following structures is most likely damaged?

What patients are at greatest risk for auto-PEEP?1. Those supported by spontaneous breath modes2. Those with high airway resistance3. Those with high expiratory flow resistance

Which of the following is incorrect pertaining to the thoracic sympathetic trunk?

A 22-year-old man is taken to the emergency room after being stabbed in the right side of his chest. He presents with a right pneumothorax, including a collapsed right lung and mediastinal structures displaced to the left. Correct management of this situation assumes the attending physician understands which of the following is a normal condition of the mediastinum?

The sternal angle:

A 12-year-old boy suffers an enlarging neurogenic tumor in the right posterior mediastinum, as shown in the given lateral view radiograph. This growth causes multiple lesions of the right thoracic sympathetic trunk below the T5 chain ganglion. Which of the following functions is most likely compromised?

Write down the the structure pointed by the arrow.  ( correct spelling please !!!)

Strategies to reduce auto-PEEP in mechanically ventilated patients with obstructive lung disease include which of the following?1. Use high inspiratory flows (60 to 100 L/min).2. Apply extrinsic PEEP.3. Use high VT values of 8-10 mL/kg4. Use high respiratory rates (>25/min).