Question

A 30-year-old woman presents with acute onset severe headache described as the worst of her life, associated with neck stiffness. CT brain performed within 2 hours of onset is reported normal. What is the next most appropriate investigation to exclude subarachnoid haemorrhage?

Accepted Answer

Lumbar puncture to assess cerebrospinal fluid

Answer

MRI brain only

Answer

No further investigation is needed

Answer

Carotid ultrasound

Answer

D-dimer

Practice question

A 30-year-old woman presents with acute onset severe headache described as the worst of her life, associated with neck stiffness. CT brain performed within 2 hours of onset is reported normal. What is the next most appropriate investigation to exclude subarachnoid haemorrhage?