Thyroid Test
The thyroid is an organ that produces hormones responsible for controlling heart, muscle and digestive function, brain development and bone maintenance. If your Thyroid hormones are imbalanced, you may have an underlying health condition: hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid). The results may give you an indication of whether you are at risk. Click below to view the full spectrum of tests included.
What's Included?
Triiodothyronine (T3): The thyroid gland exerts powerful and essential regulatory influences on growth, differentiation, cellular metabolism, and general hormonal balance, as well as on the maintenance of metabolic activity and the development of the skeletal system. A triiodothyronine (T3) test can be used in the monitoring of hyperthyroidism, hypothyroidism and used as an aid in the functional diagnosis of thyroidea.
Thyroxine (T4): The thyroid gland exerts powerful and essential regulatory influences on growth, differentiation, cellular metabolism, and general hormonal balance, as well as on the maintenance of metabolic activity and the development of the skeletal system. Thyroxine (T4) is the most commonly measured substance assessing thyroid function. It can be used in the monitoring of hyperthyroidism, hypothyroidism and used as an aid in the functional diagnosis of thyroidea.
Thyroid-stimulating hormone (TSH): Thyroid-stimulating hormone (TSH) is the main regulator of thyroid cell growth, thyroid hormone synthesis and secretion. This test is used as an aid in the screening, clinical diagnosis, prognosis and therapeutic effect evaluation of thyroid diseases. High or low levels of TSH can indicate that you have an overactive or underactive thyroid.
FAQ
Fasting has an impact on the thyroid. Since fasting directly impacts metabolism and the way body uses energy. Thyroid hormones drop when intermittent fasting. It causes a drop in thyroid hormone T3 and an increase in reverse T3 (rT3)
Usually, no special precautions including fasting need to be followed before taking a thyroid test. However, your pathologist can guide you better. For example, if you have to undergo some other health tests along with thyroid hormone levels, you may be asked to fast for 8-10 hours.
Outside factors may affect the results of your thyroid blood test. This can include whether or not you ate before your test, what time of day you take the test, and things like stress, diet, and sleep. Some medications and supplements may also affect your results. This may be because they change your thyroid function.
Fatigue. Weight gain. Weight loss. Slowed heart rate. Increased heart rate. Sensitivity to heat. Sensitivity to cold.