Question

A 53-year-old man presents with sudden severe headache, neck stiffness and photophobia. CT head without contrast at 2 hours from onset is normal. Suspicion for subarachnoid haemorrhage remains high. What is the next best investigation?

Accepted Answer

Lumbar puncture to assess for xanthochromia

Answer

MRI brain

Answer

CT head with contrast only

Answer

No further workup is required

Answer

Carotid Doppler ultrasound

Practice question

A 53-year-old man presents with sudden severe headache, neck stiffness and photophobia. CT head without contrast at 2 hours from onset is normal. Suspicion for subarachnoid haemorrhage remains high. What is the next best investigation?