If you require a capsule endoscopy, you’ll be asked not to eat anything and to drink only clear liquids the day before. This helps make sure your digestive system is clear. You might be asked not to take certain medications before the test and to avoid intense activity afterward.
During the procedure, your GI nurse places a belt with sensors in it around your waist area. The sensors send signals to a recorder worn at your waist. Thin wires connect the electrodes to the transmitter. You swallow a capsule about the size of a large vitamin, which is specially coated so it’s easier to swallow.
If you’re having capsule endoscopy to check your small intestine, you’ll swallow the capsule and go home, wearing the belt and recorder around your waist. Usually, you’ll return the next day to return the belt and recorder. Your doctor connects the recorder to a computer and looks at video images of your digestive system to check for problems.