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What Can I Expect After this Test?

The NM Renal Scan can take 45 minutes to 3 hours, based on the goals of the test. You can go back to your normal activities after having it, as the tracer is removed from your body naturally in urine. This test is safe because it does not have the risk of toxicity or allergic reaction as with IV dyes. Also, it exposes you to less radiation than with an X-ray.