I had to get a blood test on Friday as part of pre operative checks. I took my normal does around 9am and had my test around 11am. I have been on 75mcg for 9 years always been stable never had a problem. However now my free t4 readings are slightly above range. I have been told it's quite a big possibility my surgeon won't do my op with an un's table thyroid. Could it be possible that my reading was high because I had just taken my medication or am I being too hopefull here.
Thanks in advance