Random Cortisol blood test: I’ve have just... - Thyroid UK

Thyroid UK

137,641 members161,422 posts

Random Cortisol blood test

StillEverHopeful profile image
2 Replies

I’ve have just received a pile of blood work requests prior to my first endo appointment next week....

one of them is for random cortisol (I have 2 request s for cortisol)- do I need to do anything specific?

Also included are b12, folate, TSI, TSH, TPO, FT4,FT3, creatinine/electrolytes + urea.

I intended to pop along to local hospital when they open in the morning (they said ok to do that) usually when I have thyroid tests I have fasted and wait until after draw before taking my levo... with the cortisol addition is it still ok to have fasted?

Thanks

Written by
StillEverHopeful profile image
StillEverHopeful
To view profiles and participate in discussions please or .
Read more about...
2 Replies

You'll be fine to fast, it won't affect the cortisol blood test. Just make sure that it's done as early as possible in the morning, cortisol is at it's highest first thing in the morning. You said you had two tests for cortisol - are thy both random ones or something else?

StillEverHopeful profile image
StillEverHopeful in reply to

Thanks.

They both say random - I’m not sure if I’m to have two tests or if one is an accidental duplicate...

I’ll be at the doors when they open in the morning, levo in hand and big bottle of water to be sure I’m hydrated.

You may also like...

High Cortisol blood test

was 907. Since the March test I have added T3 to my levo. I’m now on 40mcg of T3 in three split...

Morning blood cortisol test, is it worth it?

anything specific to do/not do, to get a decent cortisol reading. Or, is this not a useful test to...

Help with interpreting Cortisol blood test results please.

difficult. His blood was taken at 8.30am and the cortisol result has come back as 302. Can...

Preparation for a Cortisol blood test

check Cortisol levels. I have developed hyperpigmentation on my arms so G.P. wants me to have this...

Blood cortisol testing

Is there a specific time during a woman’s monthly cycle when it’s better test cortisol levels or...