1334. 90% epistaxis is localized to where? / Arteries involved / Etiologies of epistaxis / Management options November 14th, 2009 by reuben in epistaxis Back Top Tags: card 1333. Causes of mastoiditis, s/sx, Rx // Sudden hearing loss ddx 1335. Management of nasal anterior packing / Posterior epistaxis identification, Rx, complications / Sialolithiasis: most common gland, ddx, s/sx, Rx Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.