The contrast medium is usually excreted 1 to 2 days after the examination, but tubal contrast medium may take up to a week.
The kidneys are the main excretory organs of the contrast medium, and if the patient’s kidney function is normal, it can usually be metabolized in 1~2 days. The rate of metabolism of contrast media varies depending on the items to be examined. The contrast agent for blood vessels can be metabolized in 1~2 days. The contrast agent for the fallopian tubes is metabolized more slowly because it is used in the pelvis and may take up to a week to be metabolized.
At the same time, there are many types of contrast media, and the metabolism speed of different types of contrast media is also different. Drinking plenty of fluids after the examination will help to metabolize and expel the contrast medium.