## Core Concept
Uric acid levels in the blood are a critical parameter in diagnosing and managing gout and kidney stones. Uric acid is a product of purine metabolism, and its levels can be influenced by factors such as diet, kidney function, and certain medications. Normal uric acid levels vary slightly between men and women.

## Why the Correct Answer is Right
The correct answer, 3.5-7.2 mg/dL, represents the typical reference range for uric acid levels in the blood for adults. This range can slightly vary between laboratories but generally falls within these bounds. Uric acid levels above this range can indicate hyperuricemia, which may lead to gout or kidney stones.

## Why Each Wrong Option is Incorrect
* **Option A:** 1.5-3.5 mg/dL - This range is lower than the normal uric acid level, suggesting a potential deficiency or an error in measurement.
* **Option B:** 7.2-10 mg/dL - This range starts at the upper limit of normal and extends into the hyperuricemic range, making it incorrect for normal levels.
* **Option D:** 10-12 mg/dL - This range is clearly elevated, indicating hyperuricemia and potential risk for gout or kidney stones.

## Clinical Pearl / High-Yield Fact
A key point to remember is that factors such as diet (high intake of purine-rich foods like organ meats and seafood), obesity, certain medications (like diuretics), and renal insufficiency can elevate uric acid levels.

## Correct Answer: B. 3.5-7.2 mg/dL.