The patient is brain-dead and has no self-consciousness. Such patients are never coming back to normal life. They are considered living or non-living.

Answer

To determine whether a brain-dead patient is considered living or non-living, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Brain Death**:
- Brain death refers to the irreversible loss of all functions of the brain, including the brainstem. This means the patient cannot respond to any stimuli, which is a critical aspect of being considered alive.

2. **Defining Consciousness**:
- Consciousness, particularly self-consciousness, is the awareness of oneself and the environment. A brain-dead patient lacks this awareness, indicating a loss of higher brain functions.

3. **Characteristics of Living Organisms**:
- Living organisms exhibit certain definitive characteristics, such as metabolism and the ability to respond to stimuli.
- Metabolism involves chemical processes that occur within the body to maintain life, while responding to stimuli means reacting to external changes.

4. **Metabolism in Brain-Dead Patients**:
- Even if a brain-dead patient is kept alive through life support, their metabolism may still be maintained artificially. However, this does not equate to being alive in the traditional sense.

5. **Response to Stimuli**:
- A key characteristic of living beings is the ability to respond to stimuli. Since a brain-dead patient does not respond to any stimuli, this characteristic is absent.

6. **Conclusion**:
- Based on the absence of self-consciousness, inability to respond to stimuli, and the fact that brain death is considered a form of irreversible death, we conclude that a brain-dead patient is classified as non-living.

### Final Answer:
A brain-dead patient is considered non-living.