Dose of zinc used in acrodermatitis enteropathica is?
**Core Concept**
Acrodermatitis enteropathica is a rare genetic disorder of zinc absorption, leading to severe zinc deficiency. The condition requires prompt treatment with zinc supplementation to manage symptoms and prevent complications.
**Why the Correct Answer is Right**
The correct dose of zinc used in treating acrodermatitis enteropathica is crucial for managing the condition. Zinc sulfate is commonly administered orally, and the recommended dose is 2-4 mg/kg/day, divided into 2-3 doses. This dose helps to restore zinc levels and alleviate symptoms such as skin lesions, hair loss, and impaired wound healing.
**Why Each Wrong Option is Incorrect**
* **Option A:** This dose is too low to effectively manage acrodermatitis enteropathica, and may not provide sufficient zinc to prevent complications.
* **Option B:** This dose is excessively high and may lead to zinc toxicity, a condition characterized by nausea, vomiting, and abdominal pain.
* **Option C:** This option is incomplete and does not provide a specific dose, making it an unsuitable choice for managing acrodermatitis enteropathica.
**Clinical Pearl / High-Yield Fact**
In patients with acrodermatitis enteropathica, it is essential to monitor zinc levels regularly to ensure that the dose is adequate and to prevent zinc toxicity. A zinc level of 70-100 mcg/dL is generally considered therapeutic.
**Correct Answer:** C. 2-4 mg/kg/day