What amount of WHO ORS is required for a 1 year old child in first 4 hours of diarrhea?
**Core Concept**
The World Health Organization's Oral Rehydration Solution (WHO ORS) is a critical component in the management of dehydration due to diarrhea, particularly in children. The optimal amount of ORS required depends on the child's age, weight, and the severity of dehydration.
**Why the Correct Answer is Right**
For a 1-year-old child in the first 4 hours of diarrhea, the recommended amount of WHO ORS is 75 mL/kg body weight. This is based on the child's estimated weight, which for a 1-year-old is approximately 9-10 kg. The correct calculation is 75 mL/kg x 9.5 kg = 712.5 mL. This amount should be administered over 4 hours, with the goal of correcting mild to moderate dehydration.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is likely too low, as it would not provide adequate fluid replacement for a 1-year-old child.
* **Option B:** This option is likely too high, as it would exceed the recommended amount of ORS for a 1-year-old child.
* **Option C:** This option is likely incorrect, as it does not take into account the child's estimated weight or the severity of dehydration.
* **Option D:** This option is likely incorrect, as it does not provide a clear calculation based on the child's weight.
**Clinical Pearl / High-Yield Fact**
When administering WHO ORS, it is essential to use a pre-packaged ORS solution and a clean cup or spoon to avoid contamination and ensure accurate dosing. Additionally, the child should be encouraged to drink the ORS solution in small, frequent amounts to prevent vomiting.
**Correct Answer: C. 75 mL/kg body weight.**