CT Preparation Instructions

All Patients Must

  • Bring your valid health card to your appointment.
  • Arrive 20 minutes early to register.
  • Refrain from wearing scents (we are a scent-free environment).

Please follow the specific exam instructions below. These instructions are important and must be followed.

GNMI Patient Preparation

CT Preparation

General (Chest/Abdomen/Pelvis, Liver, Renal Mass)

  • Fast for 4 hours (water allowed).
  • No need to hold urine.
  • Arrive 30 minutes early (unless otherwise instructed).

CT Kidneys and CT Pancreas

  • Fast for 4 hours.
  • Drink 1 liter of water starting 1 hour before your scan.
  • Arrive 45 minutes early.

CT Enterography

  • Fast for 4 hours.
  • Drink 1 liter of water.
  • Arrive 45 minutes early.

CT Abdomen/Pelvis (Specific Indications)

  • Fast for 4 hours.
  • Arrive 1 hour early to drink oral contrast/water.
  • Indications: Gastric bypass, bowel obstruction, post-op surgery, fistula, Crohn’s disease, ulcerative colitis, appendicitis, diverticulitis, ruling out small/colonic mass.

CT Cardiac Contrast Study / Calcium Scoring

  • Fast for 4 hours.
  • No caffeine or nicotine on exam day.
  • Avoid erectile dysfunction medications for 72 hours prior.
  • If heart rate > 65 bpm → arrive 1 hour early to take Metoprolol (confirm no allergies).
  • Shave chest hair if needed.