Important notice regarding medications and the completion of Imaging (CAT scan and MRI) procedures and surgery.
All patients need to have a test for kidney function when being scheduled for CAT scan, MRI or Angiography (with or without stents). This is due to the fact that the contrast (dye) used can have an adverse effect on kidney function in some patients. It is more likely to occur in individuals who already have abnormal kidney function. While these scans are absolutely necessary in many cases, we can take steps to try and protect the kidney function:
- Drink 4-5 glasses of water prior to the performance of CAT Scan or Angiograms
- A prescription for Mucomyst, 600 mg twice daily, the day before, the day of and the day after the test may be needed.
Follow up blood tests are needed in individuals with critical reduction of kidney function or if they are taking diabetic medication by mouth.
MRI (or MRA) scans are not done in individuals with pacemakers, permanent metal implants in the ear or skull, recent (less than 6 weeks) coronary stents. Make certain you check regarding any implant and its possible effect. Mature hip and knee replacements are not a contraindication.
Prior to surgical or invasive procedures:
14 Days before the procedure
Stop supplements of Garlic, Ginko Biloba Fever Few, St. John’s Wort and Ginseng
7 Days before abdominal operations (Aneurysm or bypass)
Stop Ticlid and Plavix
5 Days before procedure
Stop Coumadin (Warfarin)
24 hours before procedure
Stop Metformin and glyburide and any compound containing these medications.
Night before procedure
Traditional preparation would have the patient fast from midnight. Current recommendations allow clear fluids up to three hours prior to the procedure. Due to fluctuations in the schedule it is wise to make certain that the stomach is empty in case the OR time is moved up unexpectedly. Certainly it would be wise to err on the safe side and have nothing after 0400 hours before a booked surgical vein treatment.