The following is/are removed during haemodialysis

Options

A. Urea
B. Glucose
C. Amino acids
D. All the above

Answer

### Step-by-Step Solution:

1. **Understanding Hemodialysis**: Hemodialysis is a medical procedure used to remove waste products, especially nitrogenous wastes, from the blood when the kidneys are not functioning properly. It is often referred to as an artificial kidney.

2. **Identifying Waste Products**: The primary waste product that needs to be removed during hemodialysis is urea. Urea is a nitrogenous waste product formed from the breakdown of proteins in the body.

3. **Process of Hemodialysis**: During hemodialysis, blood is drawn from the patient and passed through a dialyzer (artificial kidney). In the dialyzer, urea and other waste products are filtered out of the blood.

4. **Other Substances**: While glucose and amino acids are also present in the blood, they are not typically removed during hemodialysis unless there is a specific medical reason to do so. The primary focus of hemodialysis is to remove urea and other nitrogenous wastes.

5. **Conclusion**: Therefore, the main substance removed during hemodialysis is urea.

### Final Answer:
The following is/are removed during hemodialysis: **Urea**.

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