t4

[jazzanne]

hi everyone does free thyroxine blood test include t4 x

[Clutter]

Jazzane, free thyroxine (FT4) is the usual T4 test done in the UK.

[jazzanne in reply to Clutter]

what is the diff. with total t4 x

[Clutter in reply to jazzanne]

Jazzanne, total T4 (TT4) measures the total bound T4 whereas FT4 measures the unbound T4 available for conversion to T3.

[jazzanne in reply to Clutter]

should tt4 be part of a thyroid test when your trying to get diagnoised x

[Clutter in reply to jazzanne]

Jazzanne, no, FT4 is preferable. Usual NHS tests are TSH and FT4. FT3 is desirable but rarely done at GP practices unless TSH is suppressed, and not always then.

[jazzanne in reply to Clutter]

hi my tsh 2.07, free thyrixube 16.0, free t3, 4.8

does this include free t4 i wasnt sure x

[Clutter in reply to jazzanne]

Jazzanne, the free thyroxine is free T4 (FT4).

Your TSH is a little higher than many people are comfortable with. If you feel well it is no problem but if you are still symptomatic there is room for a dose increase. Most people are comfortable with TSH just above or below 1.0. Your FT4 and FT3 look reasonable but to be sure I would need to see the lab ref ranges (the figures in brackets after your results).

[jazzanne in reply to Clutter]

hi clutter , i have not been diagnose with thyroid i just wanted to get my bloods checked do they seem noraml to you x

[Clutter in reply to jazzanne]

Jazzanne, yes they do. They don't indicate low thyroid but retest in 6-12 months as symptoms can precede abnormal bloods by months/years.

It may be worth having ferritin, vitamin D, B12 and folate tested because low levels can cause musculoskeletal pain, fatigue and low mood very similar to hypothyroid symptoms.

[jazzanne in reply to Clutter]

hi am on vit d for oestoporsis, but not had my b12 and ferritin & folate done thanks again x

[jazzanne in reply to Clutter]

clutter would a fsr blood not show if there might be something up with your ferritn and folate? x

[Clutter in reply to jazzanne]

Jazzanne, I don't know what FSR is. Ferritin, B12 and folate are individual and specific tests not covered by others.

[jazzanne in reply to Clutter]

sorry clutter i meant a full blood count that checks your haemoglobin levels x

[Clutter in reply to jazzanne]

Jazzane, no FBC doesn't include vitamin and mineral tests.

[jazzanne]

clutter my b12 is 66 range( 25.1 - 165 )is this within the normal range x