How to test thyroid if you take 2 doses (am/mid day)

Bennytrt

Member
How's it going everyone? I have a quick question regarding thyroid testing. You have to wait 24 hrs after your last thyroid dose and then get labs. I take an AM and mid day dose. Does this mean I need to take two separate sets of bloods drawn (in the AM and mid day). That way both tests are roughly 24 hrs later.
 
How's it going everyone? I have a quick question regarding thyroid testing. You have to wait 24 hrs after your last thyroid dose and then get labs. I take an AM and mid day dose. Does this mean I need to take two separate sets of bloods drawn (in the AM and mid day). That way both tests are roughly 24 hrs later.
I'll have my thyroid labs, in the morning. After that I'll take my morning thyroid med. I don't skip my afternoon thyroid meds, the day before labs.

Some doctors prefer, take your meds first and then having your labs.
 
I appreciate your feedback. I was thinking that I had to take 2 separate labs since I take a morning and mid day dose. Defy told me the same thing but I want to double check on here.
 

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Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

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The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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