Final answer:
The stool sample should be taken to the lab for analysis and testing. Various techniques such as microscopic examination and genetic analysis are used to identify possible causative agents and determine the presence of blood or other markers of infection.
Step-by-step explanation:
The stool sample should be taken to the lab for analysis and testing. The lab will use various techniques such as microscopic examination, serological testing, genetic analysis, and immunoassays to identify possible causative agents and determine the presence of blood or other markers of infection. Prompt processing of the sample is important to obtain accurate results. The lab may also perform culture and sensitivity testing to determine the appropriate antibiotic treatment, if necessary.