Results within 8 hoursRápido Lab · Barcelona
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Free T4 blood test · FT4. A SCITEK laboratory analyser viewed from the side.

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Hormones & thyroid · BARCELONA

Free T4 blood test · FT4

A standalone determination of free thyroxine, the FT4 fraction.

Results within 8 hours

€15.00

Published analysis price. Venous collection is listed separately at €6.20; check whether it is included in your selection before agreeing the final amount.

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About this test

Free T4 is thyroxine not bound to transport proteins. It differs from total T4; each determination has a separate page and price.

Laboratory catalogue namefT4

What is included

  • fT4

These are the determinations identified for this product.

When a clinician may request it

A clinician may interpret it with TSH to assess or monitor thyroid function. FT4 alone does not include TSH.

General information, not medical advice. Test selection and interpretation require professional guidance.

Frequently asked questions

Is it included in the basic profile?

Yes. The basic thyroid profile names FT3, FT4 and TSH. Avoid duplicating FT4 when selecting that profile unless advised otherwise.

What is the published service price?

Published analysis price. Venous collection is listed separately at €6.20; check whether it is included in your selection before agreeing the final amount.

When will I receive my test results?

Results within 8 hours

Medical background sources

General information, not medical advice. Test selection and interpretation require professional guidance.

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