Blood test result

[Haze1975]

Hi all

Can any please explain these test results please.

Serum TSH level < 0.01 miu/L [0.35 - 4.94]

Serum free T4 level 22.2 pmol/L [9.01 - 19.05]

On a 175mg of Levothyroxine. And had thyroid removed.

Thanks

[beh1]

Looks like you're taking too much Levo. How do you feel?

[Haze1975 in reply to beh1]

I've got ineumonia at the moment. I had to go to the doctor last night. And probably had it when this blood test was taken at the same time. Don't know if that throws the reading off or not.. or it might be because I was ill at the point. But don't feel that good. And my assumer is playing up as well.

[greygoose in reply to Haze1975]

Your TSH would have been higher at 8 am. How long before the test did you take your levo?

[Haze1975 in reply to greygoose]

I took my Levo as normally. And blood test was at 12.00.

[greygoose in reply to Haze1975]

Well, I'm sorry, but I don't know what 'normal' is for you. But, if it was between 7 and 8, say, then that would account for the high FT4. And, your TSH would be lower at 12.00 than it would be at 8.00 am. I don't think you can conclude that you are over-medicated from that test.

[Haze1975 in reply to greygoose]

Thank you. Normally is that I take them when I wake up at 5am sorry.

[greygoose in reply to Haze1975]

Even so, it's best to leave 24 hours between your last dose of levo and the blood draw.

[Haze1975 in reply to greygoose]

Hi will have to remember that next time.

[greygoose in reply to Haze1975]

It's best, if you don't want your dose reduced!

[Angel_of_the_North in reply to greygoose]

TSH would be lower at 12

[greygoose in reply to Angel_of_the_North]

Yup! You're right! Sorry.

[beh1]

Yes it's a difficult one because the tsh is suppressed and t4 over range, but if you've been very ill that can affect things (lower tsh) and the fact you took meds and had blood test at 12 is not ideal. Has the doc raised the results as an issue? Do you have symptoms of being hyper?

[Haze1975 in reply to beh1]

My tsh level have to be suppressed due to thyroid cancer. I have to be in a range of 0-1 any higher I'd be in trouble. Because I no longer have a thyroid gland any more. They removed it due to cancer being in both side of the gland. But I've never had a high reading before on my t4. It normally in the normally range and don't have a problem.

[beh1 in reply to Haze1975]

That explains the need for low tsh. If doc does not raise issue and you don't feel hyper symptoms, I would leave til next thyroid test and review then.