Which blood tests to pay privately for?

[autowhen]

I am about to go for another blood test, since the lab refused T3 test last time, I intend to pay privately for this, but I need to know which to ask for.

GP can do TSH and T4, but wondering which private test to go for, my choices are:

T3

Or

FreeT3

Or do I need to spend more money and get all the following:

Thyroid Function: TSH, FT4, TT4, FT3, TGAb, TPOAb

Vitamins: Vitamin B12 (active), Folate, Vitamin D

Inflammation Marker: CRP-hs

Iron Status: Ferritin

???

Background: Since my last blood test 7 weeks ago I have been taking 50mg Eltroxin and supplementing with 3000mg daily Vit D, (this is in addition to the monthly Vit D supplement tablet prescribed by the gp, which would not have been equivalent to a loading dose that I need). I still don’t feel well, fatigue being the worst symptom.

My last results while taking 25mg Eltroxin were:

Free T4 12.2 (10.50-22.00)

T3 lab refused to analyze

TSH 3.67 (0.27-4.20)

Serum vit B12. 399 (188-883)

Serum Folate 8.7 (3.00-17.00)

Serum Ferritin 19.0 (10.00-200.00)

Iron 18 (9.00-30.00)

Transferrin 2.5 (2.00-3.60)

Calculated TIBC 63 (53.00-95.00)

Transferrin Sat. 29 (19.00-43.00)

***Vitamin D 28 ( deficiency <50, Insufficient 50-75, Adequate >75)

Same lab, with same ranges previous results when unmedicated:

August 2017:

Free T4 12.9 (10.50-22.00)

***TSH 4.22 (0.27 - 4.20)

IgG 12.10

IgA 1.69

IgM 1.61

Serum electrophoresis NOMB

***Anti TPO abs 74 [H]

IgA anti tTG <1

Anti ENA screen 0.2

Anti Nuclear Antibodies NEG

July 2017

:

Free T4 12.6

***TSH 6.25 [H]

Feb 2013

Serum vit B12 446

Serum Folate 15.9

Serum ferritin 26.5

Advice on which blood tests to request would be helpful. Thank you.

[SeasideSusie Remembering]

You need FT3 done at the same time as TSH and FT4, so don't do it as a stand alone test.

If you have been supplementing since your last test that included vitamin supplements and minerals then it would be a good idea to see how your levels are now. In this case go for the Medichecks Ultravit which is on offer this month for £79 (normally £99) which I think is the one you have listed.

[autowhen in reply to SeasideSusie]

Thank you for your reply SeasideSusie, I have only been supplementing vit D in the last 2 months, so I was not sure if it would be too soon to see any significant change.

[SeasideSusie Remembering in reply to autowhen]

I raised my Vit D from 15 to 202nmol in 2.5 months, but I did do loading doses to start with.