So they did some testing and noted that the normal byproducts associated with the breakdown of alcohol -- ethyl glucuronide and ethyl sulfate -- were not present in her urine. Nor was there ethanol in her blood stream.
So there's no digestive byproducts and no alcohol in the blood stream but there is alcohol in the urine. How could that be?
They did some more testing and found that her bladder had been colonized by bacteria very similar to baker's yeast. They took a sample, reproduced the body's normal conditions and temperature in the lab and -- presto! -- alcohol.
That's why they were seeing alcohol in the urine but NOT alcohol digestion byproducts and NOT alcohol in the bloodstream. Her bladder was manufacturing it.
The full report is in the Annals of Internal Medicine , where it is described as "Auto-brewery syndrome." Regrettably, it is behind a paywall so I can't see if it gives the exact numbers.
Here's the bit I can see in the annals for free
Respectfully,Originally Posted by Annals Of Internal Medicine