If a patient is put on dialysis, he is most likely suffering from a severe ailment of the

Options

A. Circulatory system
B. Respiratory system
C. Excretory system
D. Digestive system

Answer

**Step-by-Step Solution:**

1. **Understanding Dialysis**: Dialysis is a medical procedure that removes waste products and excess fluid from the blood when the kidneys are not functioning properly. It is an artificial replacement for lost kidney function.

2. **Identifying the Function of Kidneys**: The primary function of the kidneys is to filter blood, removing waste products such as urea, which is a nitrogenous waste product. When kidneys fail, they cannot perform this function effectively.

3. **Consequences of Kidney Failure**: If the kidneys are not functioning, waste products like urea accumulate in the blood. High levels of urea in the blood can be toxic and lead to serious health issues.

4. **Indication for Dialysis**: When a patient requires dialysis, it indicates that their kidneys are severely damaged or not functioning at all. This is a clear sign of a severe ailment related to the kidneys.

5. **Conclusion**: Since dialysis is directly related to the function of the kidneys, a patient undergoing this procedure is most likely suffering from a severe ailment of the excretory system, specifically the kidneys.

**Final Answer**: If a patient is put on dialysis, he is most likely suffering from a severe ailment of the **excretory system** (specifically the kidneys).

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