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   Reply Reply
LinkBack Thread Tools
Old 05-17-2012, 05:40 PM   #1
Junior Member
(female)
 
Join Date: Apr 2012
Location: Canada
Posts: 36
brusselsgriffon HB User
Can somebody please check my calculation for 'optimal' range FT3/FT4

I understand the TSH is best if under 1

The ranges my family doctor uses are as follows:

Free T3 (3.5 - 7.6 pmol/L) I calculated around 6.2 is the target
Free T4 (9.0 - 23 pmol/L) I calculated around 18.33

I am horrible in math - and read the 'how to's' but.....

Thanks in advance

Last edited by brusselsgriffon; 05-17-2012 at 05:41 PM.

 
Reply With Quote
Old 05-17-2012, 10:09 PM   #2
Senior Member
(female)
 
Join Date: Apr 2011
Location: New Mexico, USA
Posts: 193
ABQpam HB UserABQpam HB UserABQpam HB UserABQpam HB UserABQpam HB UserABQpam HB User
Re: Can somebody please check my calculation for 'optimal' range FT3/FT4

I may have used a slightly different target percent of range as you did, but yes, you did your math perfectly.

The formula I use to find a target level is:

Top of range minus bottom of range = A
Multiply A by the desired percentage of range = B
Add B to the bottom number in the range. Result will be your target level.

Let's calculate your FT4 target for an example. I'll use 70% as the target.

Free T4 Range 9.0-23.0

23.0 - 9.0 = 14.0. (A)
(A) 14.0 X .70 = 2.87 (B)
(B) 2.87 + 3.50 = 6.37

 
Reply With Quote
The Following User Says Thank You to ABQpam For This Useful Post:
brusselsgriffon (05-18-2012)
Sponsors Lightbulb
   
Old 05-17-2012, 10:30 PM   #3
Senior Veteran
(female)
 
Join Date: Jan 2003
Location: Missouri, USA
Posts: 12,317
midwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB Usermidwest1 HB User
Re: Can somebody please check my calculation for 'optimal' range FT3/FT4

Yes, you seem to have done the math right. Those would be good high-end targets.
I'd aim for 50% of the range first, though, to see what that would gain me in terms of symptom relief. If not substantially better, the target can be reset higher. Fifty percent would be about 5.5 for FT3 and 16 for FT4.
__________________
"We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses." Abraham Lincoln
~~~~~~~~~~~~~~~~~~~~~~~~

 
Reply With Quote
The Following User Says Thank You to midwest1 For This Useful Post:
brusselsgriffon (05-18-2012)
Reply Reply

Tags
ft3, ft4, range



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 (631), FinnMaid (313), Reece (226), lisa789 (196), Tree Frog (80), mkgbrook (72), cd37 (56), ladybud (47), Bran'sNana (44)

Site Wide Totals

teteri66 (1180), MSJayhawk (1013), Apollo123 (910), Titchou (859), janewhite1 (823), Gabriel (763), ladybud (755), midwest1 (671), sammy64 (668), BlueSkies14 (607)



All times are GMT -7. The time now is 06:29 AM.



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!