Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and fasting. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)
Last Levothyroxine dose should be 24 hours prior to test, (taking delayed dose immediately after blood draw).
If/when also on T3, make sure to take last dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test
Is this how you do your tests?
How do you take your T3?
As 2 or 3 split doses?
What would happen if you increased your Levothyroxine dose up ?
Ferritin is too low. What are you doing to improve levels?
Eating liver or liver pate once a week, plus other iron rich foods like black pudding, prawns, spinach, pumpkin seeds and dark chocolate, plus daily vitamin C can help improve iron absorption
I know I need to up my iron and I think lowish morning cortisol are issues but I’m wondering if I should trial increasing my t3 and ignore the range because mine will be well
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