“A tension pneumothorax, on the other hand, can be fatal. Here, air enters the chest outside the lung but does not escape. As more air accumulates inside the chest, but outside of the actual lung, it creates increased pressure within the thorax which interferes with both heart and uninjured lung function.”
https://www.crisis-medicine.com/a-sucking-and-blowing-chest-wound-is-the-sound-of-not-dying/
I am guessing this officer has had some combat experience before becoming a police officer?
DG thanks for that post,
https://www.crisis-medicine.com/a-sucking-and-blowing-chest-wound-is-the-sound-of-not-dying/
Thank you for posting this.