A 30 year old patient after traffic accident. On admission the following signs and symptoms where determinated: frequent flath respiration, one part of the chest is breathing paradoxically, manifest cyanosis and mild hypotension. The most valid working diagnosis is:
A. Haemothorax
B. Rupture of trachea
C. Instabile skeleton of the chest (fluctuated thorax)
D. Haemopericardium
E. Rupture of intra abdominal organs
Answer: C. Instabile skeleton of the chest (fluctuated thorax)