The condition in which an athlete takes a violent blow or compression to the chest, without any accompanying rib fracture, and presents with severe pain during breathing, coughing up of blood, and shock is known as:

A. Pneumothorax
B. Hemothorax
C. Stress fracture of the ribs
D. Sudden death syndrome

B. Hemothorax

Explanation:

A. Pneumothorax means there is air in the pleural space, meaning there would be no coughing up blood. C. Stress fracture of the ribs is also wrong because the question states there is no rib fracture. D. Sudden death syndrome refers to babies that die without no known cause. Therefore, the only answer possible is B. Hemothorax, which means there is blood in the pleural cavity. When someone has a hemothorax they experience trouble breathing, and could have shock because of internal bleeding. Coughing up blood could also be a symptom of a hemothorax.