A 28-year-old woman presents with a sudden, severe “thunderclap” headache reaching maximal intensity within seconds, associated with vomiting and phot...

Question

A 28-year-old woman presents with a sudden, severe “thunderclap” headache reaching maximal intensity within seconds, associated with vomiting and photophobia. Neurological examination is normal and CT head performed within 3 hours is reported as normal. What is the most appropriate next investigation?

Accepted Answer

Lumbar puncture for xanthochromia

Answer

MRI head with contrast only

Answer

Carotid Doppler ultrasound

Answer

Electroencephalogram

Answer

No further investigation is needed

uk-plab-1 MCQ (SBA): Subarachnoid haemorrhage