Answer to Question #186819 in Microbiology for Kim

Question #186819

Explain the result of routine fecalysis for:

1. viral gastroenteritis

2. bacterial gastroenteritis

3. amebiasis

Describe the microscopic findings of fecalysis for these infections.

Expert's answer

Viral Gastroenteritis, Bacterial Gastroenteritis and Amebiasis     

Fecalysis refers to a sequence of examinations or tests carried out on a stool specimen. The process is used to identify bacteria and parasites that cause diseases. Stool tests help analyze certain conditions influencing the digestive tract. These conditions can incorporate disease, for example, bacteria, parasites, or viruses, cancer, or bad nutrient absorption.     

Viral Gastroenteritis. A large number of instances of gastroenteritis have a viral etiology and are self-limited. Moreover, more extreme or prolonged instances of gastroenteritis can bring about dehydration with huge mortality and morbidity (Leung & Hon, 2021). A legitimate clinical assessment will permit the doctor to appraise the level of dehydration and decide fitting treatment. Lab studies like the determination of blood urea nitrogen and serum electrolytes might be useful in certain circumstances.     

Bacterial Gastroenteritis. During the first clinical evaluation of the patient's acute diarrhea examination, the assessment should zero in on how serious the illness is, the requirement for rehydration, and distinguishing the likely causes that are based on clinical and historical discoveries. A cautious clinical examination is expected to give an evidence-based strategy that is cost-effective to primary diagnostic examinations and medication. Upon the history and articulation, management of acute diarrhea may be chosen. Stool tests help analyze certain conditions influencing the digestive tract (Humphries & Linscott, 2015). These conditions can incorporate disease, for example, bacteria, parasites, or viruses, cancer, or bad nutrient absorption.     

Amebiasis. Stool analysis is the initial phase in distinguishing the presence of Entamoeba histolytica (Othman et al., 2020). The parasites may not generally be found in stools. Due to that, the research facility may request stool samples to carry out examinations throughout a couple of days. Different parasites, for instance, Entamoeba dispar, look equivalent to Entamoeba histolytica under a magnifying lens. This requires an intensive and cautious assessment to guarantee legitimate findings and medication.     

In conclusion, findings show that for a large number of children presenting with acute gastroenteritis, serum and urine tests are not carried out since stool samples can be used to determine the infectious organism causing dehydration. Also, Bacterial Gastroenteritis results from the consumption of contaminated food or water by causing an infection in the digestive tract. Moreover, the findings clearly show that the presence of red blood cells could be a possible diagnosis of amebiasis.


Humphries, R. M., & Linscott, A. J. (2015). Practical guidance for clinical microbiology      laboratories: Diagnosis of bacterial gastroenteritis. Clinical Microbiology Reviews, 28(1),     3-31. Retrieved from:

Leung, A. K., & Hon, K. L. (2021). Paediatrics: How to manage viral gastroenteritis. Drugs in      Context, 10, 1-11. Retrieved from: Othman, N., Ujang, J. A., Ng, Y. L., Kumarasamy, G., & Noordin, R. (2020). Amebiasis.     Molecular Advancements in Tropical Diseases Drug Discovery, 1-19. Retrieved from: 

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