Mayo Clinic Connect
i want to discuss to test a patient for thyroid problems ,to do the TSH and ft4 in a fasting or non fasting state?
Hi @user_ch031a490 – great question! I’m tagging @michellecrcrn, @mohavegal and @coloradoroses, all members who have recently discussed their experiences with thyroid-related conditions. I’ve also included information on the types of thyroid tests Mayo Clinic offers: http://mayocl.in/29BZRRo.
Is this a test your physician is recommending for you?
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Great question!! I’ve been told tsh does not need fasting. Although I’ve always done my blood tests first thing in the mornings and fasted. I did however take my thyroid medication in the morning as I’ve been taking them for years so not taking it one day isn’t going to make a difference as the t4 is in the body(for a week from what I have heard). I think in my opinion fasting gets a better test result.
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