Amediastinal shift occurs in which type of chest disorder? tension pneumothorax simple pneumothorax cardiac tamponade traumatic pneumothorax

Mediastinal shift occurs in Tension pneumothorax.  A tension pneumothorax makes the lung to collapse and the heart, the trachea and  the great vessels,  to shift toward the unaffected side of the chest. When air moves out from a laceration in the lung and goes in the pleural space or infiltrate the pleural space over a wound in the chest wall the shift happens. 

$100. 125 x 0.20 = 25125 - 25 = $100

The correct answer is b