Which of the following is used artificially to remove nitrogenous waste products from the blood?

Options

A. Ventilator
B. Transfusion
C. Hemodialysis
D. Angiogram

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which method is used artificially to remove nitrogenous waste products from the blood.

2. **Analyzing the Options**:
- **Option 1: Ventilator**: A ventilator is a device that helps in breathing by supplying oxygen to the lungs. It does not remove nitrogenous waste from the blood. Therefore, this option is incorrect.
- **Option 2: Transfusion**: Blood transfusion is a medical procedure that involves transferring blood or blood components to a patient. It is not used for removing nitrogenous waste. Hence, this option is also incorrect.
- **Option 3: Hemodialysis**: Hemodialysis is a medical procedure specifically designed to remove waste products, including nitrogenous waste, from the blood when the kidneys are not functioning properly. This option is correct.
- **Option 4: Angiogram**: An angiogram is a diagnostic procedure that uses X-rays to visualize blood vessels. It does not relate to the removal of nitrogenous waste. Thus, this option is incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is **Hemodialysis** (Option 3), as it is the only method listed that is used artificially to remove nitrogenous waste products from the blood.

**Final Answer**: Hemodialysis (Option 3)

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