Contrast is chemical substance which is introduced in human body via entral/parentral route to visualize certain structures not seen in plain radiography.it.

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Presentation transcript:

Contrast is chemical substance which is introduced in human body via entral/parentral route to visualize certain structures not seen in plain radiography.it is also used to see vascularity of certain lesions in ct scan and mri

 General protocols  Informative consent.  Pt should be well hydrated.  In case of i.v contrast study renal function must be aceesed(seum urea/creatinine).  AnyH/o hypersensivity TO CERTAIN DRUGS  PT vitals must be stable.  At time of procedures the life saving drugs must be present