Thyroid levels

[Abbeyelle12]

I don't know what my test mean. TSH 1.48. T4 0.9. Can anyone answer this for me.

[fuchsia-pink]

Do you have the lab range for the T4? Are you taking levo or NDT - if so, how much? DId you have an early morning blood draw, and leave 24 hours from levo (if you take it)?

Answers to these will help us explain your results

[SlowDragon Administrator]

Just testing TSH and Ft4 is completely inadequate

How much levothyroxine are you currently taking

Was test done as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested.

Very important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially with autoimmune thyroid disease (Hashimoto’s or Ord’s thyroiditis)

Low vitamin levels common as we get older too

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water and last dose levothyroxine 24 hours before test

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

If TPO or TG thyroid antibodies are high this is usually due to Hashimoto’s (commonly known in UK as autoimmune thyroid disease). Ord’s is autoimmune without goitre.

About 90% of all primary hypothyroidism in Uk is due to Hashimoto’s. Low vitamin levels are particularly common with Hashimoto’s.

Gluten intolerance is often a hidden issue too

Link about thyroid blood tests

thyroiduk.org/getting-a-dia...

Link about Hashimoto’s

thyroiduk.org/hypothyroid-b...

List of hypothyroid symptoms

thyroiduk.org/if-you-are-un...