Kidney crystals are solid clusters of

Options

A. Calcium nitrate and uric acid
B. Calcium Phosphate and uric acid
C. Calcium carbonate and uric acid
D. Calcium metabisulphite and uric acid

Answer

**Step-by-Step Solution:**

1. **Understanding Kidney Crystals:**
- Kidney crystals, commonly known as kidney stones, are solid clusters formed from chemicals found in urine. They can vary in composition based on their type.

2. **Identifying Types of Kidney Stones:**
- There are several types of kidney stones, and the most common types include:
- Calcium stones (primarily calcium oxalate and calcium phosphate)
- Uric acid stones
- Struvite stones (associated with urinary tract infections)
- Cystine stones (rare and linked to genetic disorders)

3. **Analyzing the Options:**
- The question provides four options regarding the composition of kidney crystals:
1. Calcium nitrate and uric acid
2. Calcium phosphate and uric acid
3. Calcium carbonate and uric acid
4. Calcium metabisulfite and uric acid

4. **Determining the Correct Composition:**
- Among the options, the most common type of kidney stones is calcium stones, which are primarily made of calcium oxalate but can also include calcium phosphate. Uric acid can also be a component of certain kidney stones.
- Therefore, the correct answer is **Calcium phosphate and uric acid**.

5. **Final Answer:**
- Kidney crystals are solid clusters of **calcium phosphate and uric acid**.

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