Which one of the following is a matching pair of a certain body feature and its value/count in a normal human adult

Options

A. Urea : 5 - 10 gm/100 ml of blood
B. Blood sugar fasting : 70 - 100 mg/100 ml
C. Total blood volume : 3 - 4 litres
D. ESR in wintrobe method : 9-15 m in males and 20 - 34 m in females.

Answer

To solve the question regarding the matching pair of a body feature and its value/count in a normal human adult, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a matching pair of a body feature and its normal value in a human adult. We need to evaluate each option carefully.

2. **Evaluate the Options**:
- **Option 1: Urea 5-10 gm per 100 ml of blood**:
- The normal range for urea in blood is actually between 15 to 40 mg per 100 ml, making this option incorrect.
- **Option 2: Blood Sugar Fasting 70-100 mg per 100 ml**:
- This is the normal range for fasting blood glucose levels, which is indeed correct.
- **Option 3: Total Blood Volume 3-4 liters**:
- The average total blood volume in an adult is approximately 5 liters, so this option is incorrect.
- **Option 4: ESR (Erythrocyte Sedimentation Rate)**:
- The normal ESR for males is generally around 0-15 mm/hr and for females is around 0-20 mm/hr, so the values given (9-15 mm in males and 20-34 mm in females) are not accurate, making this option incorrect.

3. **Identify the Correct Answer**:
- The only correct matching pair is **Blood Sugar Fasting 70-100 mg per 100 ml**.

4. **Conclusion**:
- The correct answer is **Blood Sugar Fasting 70-100 mg per 100 ml**.