A stool culture is done to: 1  Find the cause of symptoms. 2  Find and identify certain types of organisms that are causing infections or diseases. 3  Identify a person who may not have any symptoms of disease but who carries bacteria that can spread infection to others. 4  Find out if treatment for an infection has worked as it should.
Meat may stay in the intestines for 24-72 hours and still depend on its type. Likewise, red meat in particular takes 1-3 days to complete the digestion process because of fat content and high protein, according to Lisa Cicciarello Andrews of University of Cincinnati.
After food is digested in the stomach -- which takes about 3-4 hours -- it leaves the stomach. Chyme (or food and stomach acid) enters the small intestine at a rate of about 1 â¦ 00-300 ml every hour.Depending on how much you ate (the average meal is probably 600-800 ml after digestion), food can be in your stomach anywhere from 3.5 hours to 7 hours.onfidence votes 507. It takes anywhere from 1 to 3 hours for food to completely exit the stomach, depending on how much food you and what food you eat (protein takes longer to digest).