You respond to a 24-year-old male who was stabbed in the left chest.
Assessment findings:
- Conscious but restless
- Respiratory rate: 28/min, labored
- SpO₂: 90% on room air
- HR: 132
- BP: 86/60
- Jugular veins distended
- Trachea slightly deviated to the right
- Absent breath sounds on the left
What is the MOST likely cause of this patient’s shock?
A. Massive hemothorax
B. Cardiac tamponade
C. Tension pneumothorax
D. Neurogenic shock