Are Medichecks Tests always reliable

[pussycatwillow]

I posted yesterday about a significant difference between the results from Medichecks and NHS blood test.

8 July

T4 24.4 ( 12-22 h

T3 5.9 ( 3.1 - 6.8 )

28 July

T4 17.5 Same réf range as above

T3 3.8

There is a 3 week gap between tests.

Has anyone experienced this with Medichecks.

[SlowDragon Administrator]

As you have Hashimoto’s levels can change quite a lot

Are your vitamin levels optimal

Are you on strictly gluten free diet

Were both tests done as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test

Always get same brand of levothyroxine?

[pussycatwillow in reply to SlowDragon]

Hi SD

Yes both tests on empty stomach between 0900 and 1000. Levo taken 24 hrs before.

TSH was similar on both

It was the ultra vit test

B12. 150 Well above range

Vit D. 75.2. (50-175)

Folate Serum. 12.67. Above range

Just seems odd there is such a difference.

Medichecks suggest overmedication but the NHS test only shows T4 to be 55% in range and T3 19%

GP didn’t offer much help, said they would reduce Levo. I declined!

They have offered another blood test in 3 months

[SlowDragon Administrator in reply to pussycatwillow]

Are you on strictly gluten free diet or dairy free diet

Different foods can affect absorption

Menstrual cycle can affect levels too

[pussycatwillow in reply to SlowDragon]

Gluten free but not dairy free.

Menstrual cycle not applicable as have had menopause.

[SlowDragon Administrator in reply to pussycatwillow]

Conversion of Ft4 to Ft3 often gets worse after menopause

[pussycatwillow in reply to SlowDragon]

😳. Not much hope for us mature ladies

[SlowDragon Administrator in reply to pussycatwillow]

What vitamin supplements are you currently taking?

If taking any supplements that contain biotin (eg vitamin B complex) did you remember to stop taking a week before ALL Blood tests?

[pussycatwillow in reply to SlowDragon]

I’m not sure. I honestly can’t remember 😩.

[pussycatwillow in reply to SlowDragon]

Igennus B Complex

Vit D and K2

COQ10

I think I may have not taken the Vit B before the NHS test.

[SlowDragon Administrator in reply to pussycatwillow]

Well if you didn’t stop vitamin B complex for testing that could also explain the different results

[Arlie123]

Three weeks is quite a long time so difference is likely to be that. Time of day might have impacted it?

I did a Medichecks and Thriva test from the same blood draw and they came back very similar though not exact. Certainly not different enough to take a different course of action

[wavedancers]

I have had a really similar situation (and also post menopausal) and posted about it. Some good responses and info on my post if you take a read... the post title was: Wildly different results 1 month apart!? I'll follow you so see how we get on.. ☺️