Preparing for Your Test

It's important that you follow the test preparation instructions exactly. This ensures the most accurate results and your comfort during the procedure. 

Here are the preparation instructions for GI testing at Froedtert Hospital and Moorland Reserve Health Center. If you are having your test at another location, please contact the GI diagnostic location for its information. The equipment is slightly different at each location, so make sure you review the instructions for your specific test location. 

Froedtert Hospital

Low Residual Diet


Capsule Endoscopy

Enterscopy - Sedation

Endoscopic Retrograde Cholangiopancreatography (ERCP) - Sedation

Endoscopic Ultrasonography (EUS) - Sedation

Flexible Sigmoidoscopy - No Sedation
Flexible Sigmoidoscopy - Sedation

Esophagogastrodudenoscopy (EGD) - Sedation

Ileoscopy - No Sedation
Ileoscopy - Sedation

Liver Biopsy - No Sedation
Liver Biopy - Sedation

Percutaneous Endoscopic Gastrostomy (PEG) Placement

Rectal Ultrasound - No Sedation
Rectal Ultrasound - Sedation

Moorland Reserve Health Center

Clear Liquid List

One Week Before Procedure

Colonoscopy - Moderate Sedation

Esophagogastrodudenoscopy (EGD) Explanation

Flexible Sigmoidoscopy - No Sedation
Flexible Sigmoidoscopy - Sedation


For gastroenterology or hepatology treatment:

  • 414-805-3666
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Locations offering gastroenterology and hepatology services: