Radiopharmaceutical (Oral Route)

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Precautions

There are usually no special precautions to observe for radiopharmaceuticals when they are used in small amounts for diagnosis.

Some radiopharmaceuticals may accumulate in your bladder. Therefore, to increase the flow of urine and lessen the amount of radiation to your bladder, your doctor may instruct you to drink plenty of liquids and urinate often after certain tests.

For patients receiving radioactive iodine (iodohippurate sodium I 123, iodohippurate sodium I 131, iofetamine I 123, iothalamate I 125, radioiodinated albumin, or radioiodinated iobenguane):

• Make sure your doctor knows if you are planning to have any future thyroid tests. Even after several weeks, the results of the thyroid test may be affected by the iodine solution that may be given before the radiopharmaceutical.

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