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More rapid assays of Serum Thyroglobulin allow quicker ascertainment of Thyroglobulin level and the result of the Iodine-123 scan result

One of the problems in the management of the patient with thyroid cancer, who is being followed up by both radio-iodine tracer whole body scanning and serial thyroglobulin levels in the serum, is that there has often been a delay in getting back the serum thyroglobulin levels. This is of practical importance because the patient has been taken of the thyroid hormone replacement (liothyronine) eight days before the iodine tracer scan is performed and is very hypothyroid; if the scan and/or thyroglobulin results suggest that he/she needs radioactive iodine therapy then the doctor will want to proceed without delay.