A 12 kg child with diarrhoea, fluid to be replaced in first 4 hours
## **Core Concept**
The question pertains to the management of diarrheal disease in children, specifically focusing on fluid replacement therapy. The World Health Organization (WHO) plan for the treatment of diarrheal disease involves assessing the degree of dehydration and replacing fluids accordingly. The plan often includes the use of oral rehydration solution (ORS) for mild to moderate dehydration.
## **Why the Correct Answer is Right**
The correct approach for managing diarrheal disease in children, especially in the context of dehydration, involves calculating the amount of fluid needed for replacement and maintenance. For a child weighing 12 kg with diarrhoea, the fluid replacement can be guided by the WHO's plan which typically recommends 75 mL/kg over 4 hours for mild to moderate dehydration. Thus, for a 12 kg child: 75 mL/kg * 12 kg = 900 mL over 4 hours.
## **Why Each Wrong Option is Incorrect**
- **Option A:** Without specific details on the volume, it's hard to directly refute, but typically, options that suggest under or over-replacement based on standard guidelines can be incorrect.
- **Option B:** Similarly, this would depend on the specifics of the volume suggested, but if it doesn't align with the calculated need based on WHO guidelines, it could be incorrect.
- **Option C:** This option might suggest an inappropriate volume for replacement; for instance, if it suggests a volume significantly less than 900 mL for a 12 kg child, it would be inadequate for rehydration.
- **Option D:** If this option suggests a volume that is not in line with standard rehydration protocols (like the WHO plan), it would be incorrect.
## **Clinical Pearl / High-Yield Fact**
A key point to remember is the WHO's formula for oral rehydration solution and the recommended volumes for rehydration in children with diarrhoea. For mild to moderate dehydration, the recommendation is 75 mL/kg over 4 hours. This guideline helps in managing dehydration and preventing progression to severe dehydration.
## **Correct Answer:** . 900 mL