Preparation for RAIU Test Dietary Restrictions

A nurse is preparing a patient for a diagnostic test involving the assessment of thyroid function through a radioactive iodine uptake (RAIU) test. It is essential that the nurse provides adequate education regarding the preparation for the test, including dietary restrictions and medication adjustments. The nurse informs the patient that they should avoid consuming foods high in iodine, such as seaweed and iodized salt, for at least _______ days prior to the test in order to ensure accurate results.