This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following is the indication for emergency thoractomy: 
Select and explain. 
A. Output of > 1 L at the time of intercostal chest tube insertion, B. > 200 ml of blood drained by chest tube over 3 consecutive hours, C. Penetrating chest trauma, D. All of the above
B: > 200 ml of blood drained by chest tube over 3 consecutive hours
Answer: B: > 200 ml of blood drained by chest tube over 3 consecutive hours 
Explanation: Indications for emergency thoracotomy:-

> 1.5 L of output at the time of chest tube insertion.
> 200 ml/hr of blood drained by chest tube over 3 consecutive hours.
Hemodynamic compromise.