By Dr Ananya Mandal, MD. Life expectancy refers to the number of years a person is expected to live based on the statistical average. Life expectancy varies by geographical area and by era. In the Bronze age, for example, life expectancy was 26 years, while in 2010, it was 67 years.In mathematical terms, life expectancy refers to the expected number of years remaining for an individual at any given age.ife expectancy varies by geographical area and by era. In the Bronze age, for example, life expectancy was 26 years, while in 2010, it was 67 years. In mathematical terms, life expectancy refers to the expected number of years remaining for an individual at any given age.
What It Is. A stool (feces) sample can provide doctors with valuable information about what's going on when a child has a problem in the stomach, intestines, or other part of the gastrointestinal (GI) system. A stool culture helps the doctor determine if there's a bacterial infection in the intestines.A technician places small stool samples in sterile plastic dishes containing nutrients that encourage the growth of certain bacteria.hat It Is. A stool (feces) sample can provide doctors with valuable information about what's going on when a child has a problem in the stomach, intestines, or other part of the gastrointestinal (GI) system. A stool culture helps the doctor determine if there's a bacterial infection in the intestines.
1 Fecal occult blood to look for blood in the stool due to causes such as infection, inflammation, and cancers. 2  Stool WBC to detect white blood cells in the stool, an indication of inflammation in the digestive tract. 3  Anti-tissue transglutaminase (anti-tTG) and other tests for celiac disease (see Celiac Disease Tests).ests that are not specific for IBD but may be done to detect and evaluate the inflammation and anemia associated with IBD include: 1  ESR (erythrocyte sedimentation rate) to detect inflammation. 2  CRP (C-reactive protein) to look for inflammation. 3  CBC (complete blood count) to check for anemia.