Patient Preparation CT scan

The Common Vein Copyright 2008

If iv contrast material is needed,

NPO for 4 hours prior to the exam.
Screen for risk factors for adverse reactions to iv contrast material including diabetes, heart disease, asthma, previous contrast reactions and multiple myeloma.
Patients on metformin. Stop the day of the exam and resume 48h later if normal creatinine.
Check renal function with BUN and serum creatinine