Dose of vitamin A prophytaxis given in age group 1-6 years –
**Core Concept**
Vitamin A prophylaxis is administered to prevent vitamin A deficiency, which can lead to night blindness, impaired immune function, and increased mortality, particularly in children. The World Health Organization (WHO) recommends vitamin A supplementation for children aged 6-59 months.
**Why the Correct Answer is Right**
The recommended dose of vitamin A for children aged 1-6 years is 100,000 IU (International Units) every 4-6 months, as per the WHO guidelines. This dose is chosen to prevent deficiency and promote optimal growth and development in young children. The administration of vitamin A is typically done through oral rehydration therapy with a single dose.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not specify the correct dose or frequency of administration.
**Option B:** This option is incorrect as the recommended dose for children aged 1-6 years is not 50,000 IU.
**Option C:** This option is incorrect as the recommended dose for children aged 1-6 years is not 150,000 IU.
**Clinical Pearl / High-Yield Fact**
Remember that vitamin A supplementation should only be given with caution in children with liver disease, kidney disease, or those taking retinoids, as excessive intake can lead to toxicity.
**Correct Answer: D. 100,000 IU every 4-6 months.**