### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My brother whos 36. Collapsed at work; he was breathing heavy when collapsed. Did CT scan & everything clear, did blood tests, blood pressure etc & tissue at back everything ok. at night he woke up with his eyes open and then went back to sleep; all this happen within 26 hours. & now for 14 hours he wont wake up. His eyes wont open, eye lids are flikering & when we put water to drink u can see his throat moving as if he is taking it in. Please tell me what could it be? Its really worrying. & now he has moved in to a ward

### output:

Hired your query am ChatDoctorAnd I will try to explain to you the possibilitiesFirst and foremost, don't give him water by mouth while he is unconscious, he may aspirate. In fact the sudden onset of loss of consciousness with breathing disorder may point to lung and/or heart problemSecond, the loss of consciousness usually means a brain problem. There may be a stroke, which may bot show up in a ct scan for 6-24 hours. Or there may be an infection like meningoencephalitis. An MRI would be a better test. Third, there may be some metabolic derangement. I would suggest checking his electrolytes and ABG (arterial blood gas). There may be a possibility that he has indeed aspirated, which may show a little late on the chest x-ray. The abnormal aspiration causes reduced oxygen supply to the brain, causing loss of consciousness. An MRI would be advisable. A possibility of heart conditions may arise and so and each and echo are advisable. I hope this helps you. Inform the reports mentioned above so I can be of help further. Best of luck. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Looking forward to your return query with the details asked so that I can help you further.(If the answer has helped you, please indicate this)