Low`Ca^(2+)` level in the body fluid causes

Options

A. Arthiritis
B. Osteoperosis
C. Gout
D. Tetany

Answer

### Step-by-Step Solution:

1. **Understanding Calcium's Role**: Calcium ions (Ca²⁺) play a crucial role in various physiological processes in the body, including muscle contraction, nerve transmission, and bone health.

2. **Identifying the Effects of Low Calcium**: When calcium levels in the body fluids are low, it can lead to several health issues. We need to analyze the options provided to see which one is directly related to low calcium levels.

3. **Evaluating Each Option**:
- **Option 1: Arthritis**: This condition involves inflammation of the joints and is not directly caused by low calcium levels. It is more related to wear and tear or autoimmune issues.
- **Option 2: Osteoporosis**: While osteoporosis is related to low calcium levels, it primarily refers to a decrease in bone density over time rather than an immediate effect of low calcium levels.
- **Option 3: Gout**: Gout is caused by the accumulation of uric acid in the joints and is not related to calcium levels.
- **Option 4: Tetanus**: Tetanus is characterized by muscle spasms and is directly linked to low calcium levels in the blood. When calcium is low, muscles can contract but cannot relax, leading to sustained contractions or spasms.

4. **Conclusion**: Based on the analysis, the correct answer to the question "Low Ca²⁺ level in the body fluid causes" is **Option 4: Tetanus**.