The diagnosis and management of tension pneumothorax. Tension pneumothorax is the progressive build-up of air within the pleural space, usually due to a lung laceration which allows air to escape into the pleural space but not to return. Positive pressure ventilation may exacerbate this 'one-way-valve' effect.
While technically the President cannot declare war without Congress, under the War Powers Resolution of 1973, the President can send troops into combat as long as he informs Câ¦ongress within 48 hours of doing so .
Without Congress' approval, Obama would have to use his own executive authority to push through a change, a move that would undoubtedly prompt cries of overreach by lawmakers. But it would fulfill a promise that extends back to his first campaign for president.