Writing on behalf of my friend (M40). My friend has been diagnosed with PTC and operated TT an year ago. It was a multifocal tumor with lymph nodes mets. He had RAI therapy and WBS following the surgery. 6 months post RAI he had another WBS (Dec 2025). Nothing suspicious has been noted in the WBS. At the end of Jan 2026 he had his blood work done, Tg was 2.9 ng/mL and anti Tg was within the range. He followed up with nuclear medicine today. They advised him to repeat the WBS again and to start LID and LT4 withdrawal from tomorrow. He hasn't consulted his endo yet. It sounds weird to me that the nuclear medicine department is advising him to repeat WBS. Neither did they check how the Tg levels are at present, nor any suspicious findings in previous ultrasound or WBS. Endo opinion was not sought.
Is this a common protocol?