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Diagnostic Testing and Screening

Pre-Catheterization Instructions

University Heart specialists have put together a list of instructions for patients undergoing cardiac catheterization procedures at University Heart. These instructions include:

  • Do not take diuretics on the day of the procedure. Generic names of common diuretics include furosemide, spironolactone, and hydrochlorothiazide. (This medicine is also combined with other medicines—lisinopril, for example—for blood pressure control). If you take a combination medicine with a diuretic in it, confirm with the outpatient nurse coordinator whether you should take it before your procedure.
  • Confirm with your physician or medical professional how long to stay off your blood thinner (generic name is warfarin) at least three days before your procedure.
  • Do not take metformin the night before the procedure, the day of the procedure, or for two days after the procedure.
  • Do not take other oral hypoglycemics, your “blood sugar pills,” the day of procedure, including the generic glyburide.
  • If you take insulin injections, give yourself only half the normal dose the night before the procedure and none on the day of the procedure.
  • Unless indicated, you can take aspirin or the generic clopidogrel bisulfate.
If you have any questions regarding these instructions, contact the outpatient nurse coordinator at (601) 815-6006.