I need help!! plz help ME in teLl ME wat are the procedures of a ct scan .. i need this answer fast plz.. :(?

okay im worried as heLl.. my lil brother (hes 4) is goin too qet a ct scan of his head [[brain]] to see if his head isnt qrowinq wronq &+ if hes brain is functioninq rite well its tomoroe but i want too knoe what their qoin to do to him.. &+ wat to do if he qet fevers after the sedation because he qets seisures wit fever.. soo plz help meh if yuh can all yur help is beinq truly appreciated thanx much love -erika