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Free t4 jumped to 24!!

Ok, i just got my test results from a walk-in clinic.  Somehow my free thyroxine (free t4) jumped to 24.  9-23 is considered normal so i'm officially hyperthyroid i guess.  My tsh also went down to 0.05; 0.35-5.0 is considered normal according to the lab sheet.  
The last blood test i had done was at the end of April by own doctor. Even though my levels were normal then, he reduced my synthroid dose from .050 mg to .025 mg.  I was complaining of many symptoms that a hyperthyroid person would have.  
The walk-in clinic doctor wants me book an appointment with GP and in the meantime to stop taking my medication.  Luckily for me, a spot became available for tomorrow so i'll be seeing my doctor.
Any advice would be appreciated.
Here's a previous post i made:
http://www.medhelp.org/posts/show/503239?post_id=post_2834725
3 Responses
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213044 tn?1236527460
Taking your thyroid med a few hours before getting a blood draw will raise your Free T4 level.

TSH levels follow a daily rythmn. TSH is lowest in the morning.
It may raise half a point during the day.

So yes, that would have an affect on the tests.
Helpful - 0
Avatar universal
When i did the blood work at the walk-in clinic, it was in the morning, after i took my thyroid pills.  Could this affect my thyroid levels?  
Maybe that's why my free t4 was so high and my tsh was below normal levels?
Helpful - 0
213044 tn?1236527460
Maybe break the 25mcg pills in half, with your doctor's permission? Stopping the med didn't seem to work for you.

12.5mcg of Synthroid is practically nothing. Maybe try stopping the med again and see how you get along this time?

Maybe you need Adrenal tests run.
Helpful - 0
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