Question

A 54-year-old woman presents with sudden onset severe occipital headache described as "the worst headache of her life". She vomits once and has photophobia but no focal neurological deficit. CT head performed within 2 hours of onset is normal. What is the next most appropriate investigation?

Accepted Answer

Lumbar puncture for xanthochromia

Answer

No further investigation is needed

Answer

CT cerebral angiography

Answer

MRI brain

Answer

Carotid Doppler ultrasound

Practice question

A 54-year-old woman presents with sudden onset severe occipital headache described as "the worst headache of her life". She vomits once and has photophobia but no focal neurological deficit. CT head performed within 2 hours of onset is normal. What is the next most appropriate investigation?