CT scans are most frequently done with and without a contrast. The contrast improves the radiologist’s ability to view the images of the inside of the body.
ALLERGY: Please inform our center when you schedule your CT scan if you have had an allergic reaction to any contrast. IV contrast will not be administered if you have had a severe or anaphylactic reaction to any contrast in the past. If you had mild to moderate reactions in the past, you will likely need to take medication prior to the CT scan and follow a protocol. This will be discussed with you in detail when you schedule your exam. Any known reactions to contrast should be discussed with your personal physician.
EAT/DRINK: If your doctor ordered a CT scan without contrast, you can eat, drink and take your prescribed medications prior to your exam. If your doctor ordered a CT scan with contrast, do not eat anything 4 hours prior to your CT scan. You are encouraged to drink water. You may also take your prescribed medications prior to your exam. For the exception of Diabetes medication if you have had kidney failure in the past.