A 30-year-old man presents with sudden severe headache described as the worst of his life, associated with vomiting and brief loss of consciousness. O...

Question

A 30-year-old man presents with sudden severe headache described as the worst of his life, associated with vomiting and brief loss of consciousness. On arrival his GCS is 15 but he has neck stiffness. Non-contrast CT head performed within 2 hours of onset is normal. What is the next best step in investigation?

Accepted Answer

Perform lumbar puncture to assess cerebrospinal fluid

Answer

No further investigation is required; discharge with follow-up

Answer

Repeat CT head with contrast

Answer

Arrange outpatient MRI brain

Answer

Start migraine therapy and review in 48 hours

ca-mccqe1 MCQ (SBA): Subarachnoid haemorrhage