clinical informationdeteriorated memory, yelling , no focal neurological signs, imp; dementiadementiainvestigations / servicesct scan, site brain plainpatient request informationpriority routineprivate hospital or centrehistory of allergies nohistory of asthmasteriod premedication prescribedhistory or reaction to contrast mediapatient on metforminlastest serum creatininecontraindocation to beta-blockerprevious operation relevant to this scan nonepront film