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.
  It usually takes about 4 to 6 hours for a full stomach to digest the food. However, this varies from person to person, and if vomitting occurs, much less time.It takes â¦ from 12 to 24 hours for the food to completely leave the digestive/excremetory systems.7 people found this useful. It usually takes about 4 to 6 hours for a full stomach to digest the food. However, this varies from person to person, and if vomitting occurs, much less time. It takes â¦ from 12 to 24 hours for the food to completely leave the digestive/excremetory systems. 7 people found this useful.