FT 4

General information:

The thyroid accumulates iodine, producing the hormones T3 (triiodothyronine), T4 (thyroxine), rT3 (inverted triiodothyronine) and calcitonin.
T4 is a pre-homolog of T3, which means that there is a need for processing before turning into T3.
rT3 is formed in T4 processing but is inactive.
Calcitonin reduces calcium levels in the blood.
Thyroid hormone testing is blood, monitoring the levels of free T3 and T4 (FT3 and FT4) fractions. This is part of the total amount of hormones that is active and not associated with carrier proteins.

In case of doubt about hypothyroidism - fast gain, easy tiredness, rough skin, constipation, too regular menstrual cycle, feeling cold
In case of doubt, hyperthyroidism - weight loss, palpitations, disorder, nervousness, sweating, sensation of heat, irregular menstrual cycle.
The TSH study also provides information as to whether the problem arises from the thyroid gland from the pituitary or hypothalamus.
In depressive states
To control treatment for hypo- or hyperthyroidism

Analysis of the exact level of free T4 is particularly important for women during pregnancy, as hormonal fluctuations can be caused not only by the growth of the fetus but also by some medications designed to relieve the condition.

SAMPLE REQUIRED:

Venous blood in the morning in fasting

Key words:

T4