


Abnormal Thyroid tests after iron infusion
My thyroid tests have always been within normal ranges. I got an iron iv infusion for low iron and low ferritin about 2 weeks ago. I got my thyroid tested a week after infusions and then another week after that. My labs had come back abnormal for low TSH and high T4. I thought it was my prenatal vitamins causing issues with the high biotin skewing the results, that’s why I retook it one week later after stopping the vitamins. The tests were still abnormal. I did a little AI research and came across iron IVs temporarily altering thyroid levels as your body recalibrates from the infusion. Is this true? Has anyone ran into the same situation? I reached out to my endocrinologist as I already had hormonal issues in the past. But wanted to see if anyone else dealt with the same occurrence. AI said I should wait to retest around 8-12 weeks after infusion for all tests.