Holiday working hours:

Dear patients, on the occasion of September 22 - Day of Bulgarian independence, the working hours of our laboratories are as follows:
*Sofia city, both our sites will be closed on 22.09, on 23.09.23, only the central laboratory at 1 Jerusalem Blvd. will be open;
*Varna city, all laboratories will be closed except for:
- 3 ILINDEN STREET - normal working hours, no change
- "TSAR OSVOBODITEL" Blvd. 81 - on 22.09.23 from 08:00 a.m. to 12:00 p.m. and on 23.09.23 will be closed

FreeТ4 (FT4)

16.00 BGN

It represents the free, not bound to plasma proteins, metabolically active form of the thyroid hormone thyroxine. It gives a more realistic idea than total thyroxine of thyroid function, especially in patients with changes in the levels of transport proteins, in pregnancy, taking certain medications.

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WHAT DO YOU NEED TO KNOW BEFORE ANY EXAMINATION?

Read the patient instructions or consult us by phone.

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