Answer:
Answer is 15-20 minutes after injection.
Explanation:
Contrast medium can be explained as a medium that helps in making the internal structures more visible when introduced or injected into the body. This is done during radiography, X-ray. Examples are gadolinium and barium sulfate.
The contrast medium is useful in diagnosing medical conditions.
It should be noted that, this contrast medium has a negative effect on the kidney, by causing contrast -induced acute kidney injury, that is, acute renal failure, ARF. This effect usually occurs within 24-72 hrs after injection.
