Question

A 76-year-old man on warfarin for atrial fibrillation falls and hits his head. He is on therapeutic anticoagulation (INR 2.7) and has a mild headache but normal neurological examination. What is the most appropriate initial investigation?

Accepted Answer

CT brain without contrast

Answer

No imaging; observe in the ED

Answer

MRI brain with contrast

Answer

Skull X-ray only

Answer

Lumbar puncture

Practice question

A 76-year-old man on warfarin for atrial fibrillation falls and hits his head. He is on therapeutic anticoagulation (INR 2.7) and has a mild headache but normal neurological examination. What is the most appropriate initial investigation?