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Old 09-07-2008, 11:07 PM   #1
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tygwyn HB User
FT3 / RT3 Ratio

I've just had some some blood results back and, thankfully, my new doctor has decided to put me onto Armour!! yay!!

Anyway I'm trying to work out what my ratio for FT3 to RT3 is...can anyone help please?

FT3 - 3.7 (2.5 - 6.0)
RT3 - 343 (140 - 540)

Thanks in advance...as always!

Rach xxxx
__________________
Rach xxxx

Total Thyroidectomy Oct 06 due to Massive Multi Nodular Goiter and Hashi
Adrenal Fatigue
180mg NTH
28mg HC
2 x Caltrate

Rach xxxx

 
Old 09-08-2008, 05:54 AM   #2
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Re: FT3 / RT3 Ratio

What was your FT4 levels and range? Did you get a T3 uptake as well?

FT3 - 3.7 (2.5 - 6.0) First.. dang this is an odd range. First time I have seen one so.. broad. You are at 34% of the normal range in FT3. This is suboptimal in range for menopausal or childbearing aged women.

RT3 - 343 (140 - 540) This indicates that you are 50.75 % of the normal range.

Now if you are looking at ratio of RT3 to FT3. You are converting T4 at a rate of 3:2. Thus for every two active T3 molecules you make three inactive revers T3 molecules. I have seen worse ratios. A better gauge of conversion is too look at your Ft4 results along side the Ft3 and Rt3 results.

MG
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Old 09-08-2008, 05:56 AM   #3
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Re: FT3 / RT3 Ratio

Quote:
Originally Posted by mkgbrook View Post
What was your FT4 levels and range? Did you get a T3 uptake as well?

FT3 - 3.7 (2.5 - 6.0) First.. dang this is an odd range. First time I have seen one so.. broad. You are at 34% of the normal range in FT3. This is suboptimal in range for menopausal or childbearing aged women.

RT3 - 343 (140 - 540) This indicates that you are 50.75 % of the normal range.

Now if you are looking at ratio of RT3 to FT3. You are converting T4 at a rate of 3:2. Thus for every two active T3 molecules you make three inactive revers T3 molecules. I have seen worse ratios. A better gauge of conversion is too look at your Ft4 results along side the Ft3 and Rt3 results.

MG
Thanks MG

My FT4 was 15 (8-22)

Sorry I havent had my T3 uptake done
__________________
Rach xxxx

Total Thyroidectomy Oct 06 due to Massive Multi Nodular Goiter and Hashi
Adrenal Fatigue
180mg NTH
28mg HC
2 x Caltrate

Rach xxxx

Last edited by tygwyn; 09-08-2008 at 05:58 AM.

 
Old 09-08-2008, 06:22 AM   #4
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Re: FT3 / RT3 Ratio

No problemo! The T3 uptake is a rough estimate and requires having the Total T3 and t4 levels as well for the best comparison. The Ft4 is what will really round things out nicely.

FT4 15 (8-22)

You are at 50 % of normal here. This indicates that you are out of balance with your Ft3 production and in balance with your RT3 conversion. You are converting your active T4 to RT3 at a 1 : 1 rate. You are converting your active T4 to active T3 at 0.68 rate which is approximately two-thirds. As a result you need a little bit of T3 to compensate for poor T4 to T3 conversion. Now you are not COMPLETELY disfunctional in your T4 to T3 conversion. You are a bit out of balance..but not excessively so as a result you may need to mix and match your pure t4 supplement with Armour until your Ft3 and Ft4 levels are balanced and with in 5-10% of each other. Two out of three thyroid patients need some T3 in there supplemental regime, however teh T4 to T3 ratio of Armour may be too rich in T3 for you if you go with pure Armour.

Keep us posted on how well you do with Armour/T3! I am wishing you the best of luck.
MG
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Last edited by mkgbrook; 09-08-2008 at 06:23 AM.

 
Old 09-08-2008, 02:48 PM   #5
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Re: FT3 / RT3 Ratio

Thanks very much MG - as always...very much appreciated!

I've also noted that my Ferritin seems to be pretty low (although my doc was happy with it?)

Ferritin 36 (15 - 200)

Is that classed as low?

How're you doing these days? Still on the up?
__________________
Rach xxxx

Total Thyroidectomy Oct 06 due to Massive Multi Nodular Goiter and Hashi
Adrenal Fatigue
180mg NTH
28mg HC
2 x Caltrate

Rach xxxx

 
Old 09-08-2008, 05:55 PM   #6
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Re: FT3 / RT3 Ratio

You want Ferritin in the 70-90 level minimum. You could use adding some Ferrous Fumerate to your vitamin and supplement regime. Your Ferritin is low.

MG
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Old 09-08-2008, 06:34 PM   #7
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Smile Re: FT3 / RT3 Ratio

Hi Rach
Don't know anything about RT3 etc but I would say that your ferritin could be higher. Another pill to take lol...I take iron and it keeps my ferritin at about the same level as yours.
Take care

Jenni

 
Old 09-08-2008, 10:06 PM   #8
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Re: FT3 / RT3 Ratio

Oh dear god...more tablets!! haha

At the moment I'm taking Oroxine, 5 x HC, DHEA & Calcium...now I need to add Iron...will it ever end?!!

Thanks guys - much appreciated.

I've emailed my doctor to see what her take is on it.
__________________
Rach xxxx

Total Thyroidectomy Oct 06 due to Massive Multi Nodular Goiter and Hashi
Adrenal Fatigue
180mg NTH
28mg HC
2 x Caltrate

Rach xxxx

 
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