In that sense the behavior of light in this apparatus is deterministic, but there is no way to predict where in the resulting interference pattern any individual photon will make its contribution (although, there may be ways to use weak measurement to acquire more information without violating the uncertainty principle). Some (including Albert Einstein) have argued that the inability to predict any more than probabilities is simply due to ignorance. The idea is that, beyond the conditions and laws can be observed or deduced, there are also hidden factors or "hidden variables" that determine absolutely in which order photons reach the detector screen. They argue that the course of the universe is absolutely determined, but that humans are screened from knowledge of the determinative factors. So, they say, it only appears that things proceed in a merely probabilistically determinative way. In actuality, they proceed in an absolutely deterministic way. John S. Bell criticized Einsteins work in his famous Bells theorem, which, under a strict set of assumptions, demonstrates that quantum mechanics can make statistical predictions that would be violated if local hidden variables really existed. A number of experiments have tried to verify such predictions, and so far they do not appear to be violated. Current experiments continue to verify the result, including the 2015 "Loophole Free Test" that plugged all known sources of error and the 2017 "Cosmic Bell Test" experiment that used cosmic data streaming from different directions toward the Earth, precluding the possibility the sources of data could have had prior interactions.
A standard fatty meal (usually a high fat milk shake) is then given and more imaging is performed for another hour so that the response to the fatty meal by the gall bladder can be shown. The gall bladder should respond and begin emptying into the duodenum, the amount of bile ejected can then be calculated as an ejection fraction (EF). An EF < 35% is considered to be diagnostic of biliary dyskinesia and suitable for cholecystectomy to be considered. Treatment
Laparoscopic cholecystectomy has been used to treat the condition when due to dyskinesia of the gallbladder. Prognosis
Symptoms may persist after cholecystectomy, and have been linked to the use of proton pump inhibitors. See also
Bile acid malabsorption, an entry of the bile acid into a large intestine due to malabsorption the bile in the ileum, which may cause chronic  diarrhea. References


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