A 54-year-old woman presents to the emergency department complaining of the abrupt onset of what she describes as the worst headache of her life. You are concerned about the possibility of subarachnoid hemorrhage. What is the most appropriate initial test for diagnosis?
A )Cerebral angiography
B )CT of the head with IV contrast
C )CT of the head without IV contrast
D ) Lumbar puncture
E )Transcranial Doppler ultrasound