Without a gallbladder, there's no place for bile to collect. Bile is a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder. Instead, your liver releases bile straight into the small intestine. This allows you to still digest most foods. However, large amounts of fatty, greasy, or high-fiber food become harder to digest.
The provider must continue CPR until either a valid DNR order can be produced, or directed by medical control to discontinue. This is from a first responder point of view.