Thyroid test

[JoshRH]

Any advise before I go for my thyroid test tomorrow morning ? Thanks

[shaws Administrator]

Don't take thyroid hormones before but afterwards. Also fast but you can drink water.

[JoshRH in reply to shaws]

When should I start fasting?

[cwill in reply to JoshRH]

As in book the earliest appointment in the day and do not eat before test. Also be careful of what you drink, water only I think.

[JoshRH in reply to cwill]

Am I able to eat today, just not tomorrow morning before the test?

[SeasideSusie Remembering in reply to JoshRH]

JoshRH Have your evening meal as normal tonight, don't have breakfast until after the blood draw.

[JoshRH in reply to SeasideSusie]

Thankyou susie x

[JoshRH in reply to SeasideSusie]

Should I drink plenty of water to?

[SeasideSusie Remembering in reply to JoshRH]

You can drink as much as you wish. There's no particular need to drink more than usual as it's a venous blood drawat the surgery (I presume ). When doing a fingerprick test it's usually suggested that we are well hydrated so that's when drinking plenty of water is suggested.

[elwins in reply to JoshRH]

Ask for a printout of your results when you get them so you can post them on this site so knowledgable members can give advice.

[SlowDragon Administrator]

If you are taking any supplements with biotin in then you should have stopped them 4-5 days before test as can falsely affect TSH result.

Biotin is in most vitamin B complex

endocrinenews.endocrine.org...

[janey1234 in reply to SlowDragon]

Is it ok to carry on taking B12 sublinguals whilst off B Complex for those few days or should we stop both? I know the B12 won't affect the result just wondered if it was ok to not take both together? 😊