665. What % headache patients have SAH? / S&Sx SAH / Hunt & Hess Classfication January 3rd, 2009 by reuben in .headache, SAH Back Top Tags: card 664. Features of tension headache / Causes of subarachnoid hemorrhage / What % of the population has a berry aneurysm? / Diseases associated with berry aneurysm 666. Sensitivity of CT in SAH / When does xanthochromia occur? / If persistently bloody LP but no xanthochromia with high suspicion for SAH, what to do? / Ancillary test commonly positive in SAH / Treatment of SAH / Cancers most likely to metastasize to brain Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.