Question

A 27-year-old presents with sudden severe headache described as a 'thunderclap headache.' Neurological exam is normal. What is the most important immediate diagnostic step?

Accepted Answer

CT brain without contrast

Answer

Plain skull X-ray

Answer

MRI brain with contrast

Answer

Lumbar puncture immediately

Answer

Sinus X-ray

Practice question

A 27-year-old presents with sudden severe headache described as a 'thunderclap headache.' Neurological exam is normal. What is the most important immediate diagnostic step?