A 60-year-old female presents with sudden severe headache and vomiting, and then becomes unconscious. Her medical history includes hypertension and smoking. On examination, her neck is stiff and the Glasgow Coma Scale is 7. What is the probable diagnosis and the next steps?
The patient's symptoms suggest a subarachnoid hemorrhage, possibly due to a ruptured aneurysm. She should be stabilized immediately, with careful attention to airway management given her reduced level of consciousness. An urgent CT scan of the head should be performed to confirm the diagnosis. If the diagnosis is confirmed, she would likely need an urgent neurosurgical intervention to secure the aneurysm and prevent rebleeding.