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-   -   Do I stop meds for a few days B4 bloodwork? (http://www.lowcarbfriends.com/bbs/thyroid/806054-do-i-stop-meds-few-days-b4-bloodwork.html)

ellenalesa 06-14-2013 04:46 AM

Do I stop meds for a few days B4 bloodwork?
I thought I had read that it's better to skip meds for about 3 days prior to bloodwork. Is that true?

Is there a sticky somewhere about this?


ravenrose 06-14-2013 11:18 AM

I don't think so!!!

the thing is, your numbers will vary depending on when you take your meds. the doctor should know when you took them, and ideally would have instructions for you. not all doctors have the same idea here...

they want to know how you are doing WITH your meds. stopping them would be counterproductive. if it were me, I would gain 10 lb in three days if I stopped them too!

watcher513 06-14-2013 11:39 PM

If you're only on T4 it doesn't matter when you've taken them. If you take T3 also, then it could matter. I take both and try to get labs done 5 hours after my morning dose.

I guess the point is, if you take T3 along with T4, if you take them, then an hour later get labs done, your FT3 will show high in the results and (probably) freak out your doctor.

Lokarbiebarbie 06-15-2013 04:42 AM

Call your doctor's office and ask. But, if it's only levothyroxine (T4) than you 'could' take it day of, as T4 hormone wouldn't really show up for four to six weeks. If you take Armour, or you take a combo of T4/synthetic/Cytomel than call your doc and ask...some do NOT want you to take the Cytomel, some do and then test after a specific period of time.

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