Aa
A
A
Close
Avatar universal
high initial TSH then "normal thyroid profile"
I am a 47 yr old  female, went to Dr. with high heart rate and palpitations and several episodes of panic attacks. Heart in great shape and blood tests CBC, Chem 7 all normal.  She suspected a thyroid problem and performed a TSH which came back 7.5. I then had a thryoid profile test done  which came back "normal" . Why would the first TSH show a high TSH and then two days later TSH come back in normal range? Should I get tested somewhere else?
T4Free 1.15
T3 119.4
TSH 2.43
Two of my sisters diagnosed with Hashimoto and my mom has hypo, Dad had Graves. I appreciate any insight.
Thanks
Cancel
4 Answers
Page 1 of 1
Avatar universal
TSH is both very volatile and a very poor indicator of thyroid status.  It can vary as much as 70% just depending on the time of day the blood was drawn.  It's at best a screening test in the absence of symptoms.

Do you have the ranges on your FT4 and TT3?  Ranges vary lab to lab and have to come from your own lab report.

Any other symptoms?  Fatigue?  Weight gain?  Depression?  Etc?
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Comment
Post Comment
Avatar universal
Ranges are:
T4Free-.6-1.7 NG/DL
T3- 60-181 NG/DL
TSH,BLD,QN
Other symptoms are weight loss, intestinal discomfort, bloating but not fatigue or depression.
Thanks the TSH information is very helpful.
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Comment
Post Comment
Avatar universal
Your FT4 is "perfect".  You don't get much more "midrange" than you are.  TT3 is a little on the low side, although given that you are not on meds, it doesn't bother "me" a bit.  TT3 is considered an obsolete test.  It's been replaced by FREE T3 (FT3), which tells the amount of T3 in the blood actually available to cells.  Next time around, you should request that instead.

Since you have autoimmune thyroid disease in your family history, it might be a good idea to have antibody testing to see if you might be in the early stages of either Hashi's or Graves'.  These are simple, relatively inexpensive blood tests.  TSI (thyroid stimulating immunoglobulin) is the definitive test for Graves, and TPOab (thyroid peroxidase antibody) and TGab (thyroglobulin antibody) are the markers for Hashi's.  Antibodies can be present for years before labs go out of range and/or symptoms appear.  
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Comment
Post Comment
Avatar universal
Thank you, this information is extremely helpful! I am scheduled to see my doctor again on Monday and will ask for the TSI, TPOab and TGab. Thanks again for your prompt, helpful and educational response!
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Comment
Post Comment
Your Answer
Avatar universal
Answer
Do you know how to answer? Tap here to leave your answer...
Answer
Answer
Post Answer
A
A
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
Thyroid Disorders Community Resources
RSS Expert Activity
233488 tn?1310696703
Blank
Marathon Running Done Over Many Yea...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
233488 tn?1310696703
Blank
New Article on Multifocal IOL vs &q...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
748543 tn?1463449675
Blank
TMJ/TMJ The Connection Between Teet...
01/15 by Hamidreza Nassery , DMD, FICOI, FAGD, FICCMOBlank
Top Thyroid Answerers
649848 tn?1474485941
Blank
FL
Avatar universal
Blank
MI
Avatar universal
Blank
Sisters, OR
Avatar universal
Blank
657231 tn?1453836403
Blank
Northern, NJ
Avatar universal
Blank
Calicut, India