It appears you have not yet Signed Up with our community. To Sign Up for free, please click here....



Thyroid Disorders Message Board
Post New Thread   Closed Thread
LinkBack Thread Tools
Old 01-24-2005, 06:55 AM   #1
Senior Veteran
(female)
 
Join Date: Jan 2002
Posts: 5,818
ticker HB Userticker HB Userticker HB Userticker HB Userticker HB User
Question on determining optimal lab range

Sorry guys, a couple more questions. If most women feel best when their Free T3 is in the upper third of the range, is this determined by subtracting the lower range from the higher range, dividing by three, and adding 2/3 to the lower range? This is taxing my brain! My newest Free T3 is 3.0 with the range being 2.3-4.2. So would this make the optimum 3.56?

Should the Free T4 also be in the upper 1/3 of the range for optimum health? Does the Free T4 result reflect how well Synthroid is working? My newest Free T4 is 1.43 with the range bing 0.61-1.76. Although requested, the lab failed to run the TSH.

I will be seeing a new doctor on Wednesday, hoping that adding T3 and/or adjusting the Synthroid may help my exhaustion and brain fog. What do you all think? I am trying to learn as much as I can. Any and all advice will be greatly appreciated.

Thanks!

 
Old 01-24-2005, 08:57 AM   #2
Veteran
(female)
 
Join Date: Sep 2004
Location: Colorado
Posts: 355
lillypad HB User
Re: Question on determining optimal lab range

Subtract lower value from upper value (4.2 - 2.3 = 1.9)

Divide difference by 3 (1.9/3 = 0.633).

Top 1/3 = upper value - 0.633 = 3.57

You are correct - this is confusing to me also!

T3 is a 'brain food' according to my shrink. And it certainly works well for me - and quickly!

Good luck.

 
Sponsors Lightbulb
   
Old 01-24-2005, 05:07 PM   #3
Senior Veteran
(female)
 
Join Date: Feb 2003
Location: Conroe,TX, USA
Posts: 2,930
dea4 HB Userdea4 HB User
Re: Question on determining optimal lab range

Another way to do it, and this is how MEEP explained it, is to take the higher number and subtract the lower number, then divide by .7 (thats point 7) and then add in the lower number.
So....4.2-2.3=1.9 X.7=1.33+2.3=3.63 So your 70% target range would be 3.63

You can also find mid range by doing the same only dividing by .5

You do also want your Free T4 in the upper 1/3, they NEED to be pretty balanced and it is even more important that you keep the FT4 stable in the upper 1/3

 
Old 01-25-2005, 03:47 PM   #4
Senior Veteran
(female)
 
Join Date: Jan 2002
Posts: 5,818
ticker HB Userticker HB Userticker HB Userticker HB Userticker HB User
Re: Question on determining optimal lab range

Thank you both very much!

lillypad, I am glad the T3 is helping you. I really need some brain food myself!

dea4, thanks for the info on the T4 ranges. I believe my Free T3 and Free T4 can use some tweaking. I will be seeing a new doctor tomorrow and I really hope he will be able to help.

 
Closed Thread

Similar Threads
Thread Thread Starter Board Replies Last Post
Hey! I've got a question about optimal ranges! hopetofeelwell1 Thyroid Disorders 16 07-25-2008 06:18 PM
new to hypot and question about labs kayleighsmom Thyroid Disorders 5 06-25-2008 11:21 PM
Vitamin D Question for DesertBloom and others montesflus Osteoporosis 3 03-19-2008 07:06 PM
Quick question, optimal levels of T4 and Free T3? Starfish564 Thyroid Disorders 6 01-22-2008 01:38 PM
Question About Armour fjones1 Thyroid Disorders 6 12-05-2007 06:28 AM




Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Join Our Newsletter

Stay healthy through tips curated by our health experts.

Whoops,

There was a problem adding your email Try again

Thank You

Your email has been added




Top 10 Drugs Discussed on this Board.
(Go to DrugTalk.com for complete list)
Armour
Cytomel
Levothroid
Levoxyl
Potassium
  Synthroid
Tapazole
Unithroid
Xanax
Zoloft




TOP THANKED CONTRIBUTORS



sammy64 (668), midwest1 (630), FinnMaid (311), Reece (225), lisa789 (196), Tree Frog (80), mkgbrook (72), cd37 (56), ladybud (47), Bran'sNana (44)

Site Wide Totals

teteri66 (1180), MSJayhawk (1004), Apollo123 (904), Titchou (847), janewhite1 (823), Gabriel (759), ladybud (754), sammy64 (668), midwest1 (668), BlueSkies14 (610)



All times are GMT -7. The time now is 02:03 PM.



Site owned and operated by HealthBoards.comô
Terms of Use © 1998-2014 HealthBoards.comô All rights reserved.
Do not copy or redistribute in any form!