is a common agent responsible for infantile diarrhea?

ESIC Nursing Officer 2016 (shift-1)

Child Health Nursing (Pediatrics)

Easy

Appeared in: ESIC Nursing Officer 2016 (shift-1)

Explanation

Rotavirus is the leading cause of severe, dehydrating diarrhea in infants and children under 5 years old globally.
The peak incidence of symptomatic rotavirus infection is in children aged 6 to 24 months, a period when maternal antibody protection wanes.
It is a highly contagious virus transmitted via the fecal-oral route, leading to frequent outbreaks in daycare centers and hospitals.
The virus infects and destroys mature enterocytes in the small intestine, leading to malabsorption and watery diarrhea, with dehydration being the most serious complication.

Option B: Streptococci are bacteria that primarily cause respiratory infections (e.g., pharyngitis), skin infections (e.g., impetigo), and invasive diseases. They are not a common cause of primary infectious diarrhea.
Option C: The option 'Coil' is a likely typo for E. coli. While certain strains of E. coli (like ETEC and EPEC) are major causes of bacterial diarrhea in children, Rotavirus is the single most common cause of severe, dehydrating diarrhea in this age group worldwide.
Option D: Entamoeba histolytica is a protozoan parasite that causes amoebiasis. It typically presents as dysentery (bloody and mucoid stools) rather than the watery diarrhea characteristic of rotavirus. It is less common than Rotavirus as a cause of diarrhea in infants.

Visual 1: Diagram - An illustration of the Rotavirus, highlighting its characteristic wheel-like shape which gives it its name.
Visual 2: Chart - A pie chart showing the relative prevalence of different pathogens (Rotavirus, E. coli, Shigella, etc.) causing acute diarrhea in children under five.
Visual 3: Infographic - A visual guide to the signs of dehydration in an infant (e.g., sunken fontanelle, dry diapers, no tears when crying).

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Etiology of infantile diarrhea as background academic context rather than a clinical decision trigger.
A key nursing responsibility is to assess for and manage dehydration, which is the primary cause of morbidity and mortality in infantile diarrhea. This includes monitoring intake/output, weight, and vital signs.
Patient education is critical. Nurses must teach caregivers how to properly prepare and administer Oral Rehydration Solution (ORS), the importance of continuing feeding, and the danger signs that warrant immediate medical attention.
Promoting vaccination is a crucial public health role for nurses. The oral Rotavirus vaccine is a safe and effective way to prevent severe disease and hospitalization.

How to Approach the Question

First, identify the key terms in the question: 'infantile diarrhea' and 'common agent'. This points to a question about the epidemiology of infectious diseases in a specific age group.
Recall the most frequent causes of gastroenteritis in infants and young children. Viral pathogens are extremely common.
Evaluate the options. Rotavirus is widely known as the leading cause of severe diarrhea in this population before the widespread use of vaccines.
Consider the other options. Streptococci are not typical gut pathogens. E. coli is a cause, but Rotavirus is more common for severe cases in infants. Entamoeba histolytica causes a different type of diarrhea (dysentery) and is less common.
Conclude that Rotavirus is the best fit for the 'most common agent' causing severe infantile diarrhea.

Concept Tested & Keywords

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