Overview
A thyroid profile test is a group of tests that helps evaluate the functioning of the thyroid gland and diagnose thyroid disorders. These tests measure the levels of thyroid hormones such as T3, T4, and TSH in the blood. T3 and T4 are highly protein-bound hormones and can be affected by numerous factors like illness, medications, and genetic factors that influence protein binding. Therefore, it is useful to measure the free or unbound hormone levels, which correspond to the biologically available hormone pool. In primary hypothyroidism, thyrotropin (TSH) levels will be elevated. In primary hyperthyroidism, TSH levels will be low. The ability to quantify circulating levels of TSH is important in evaluating thyroid function. It is especially useful in the differential diagnosis of primary (thyroid) from secondary (pituitary) and tertiary (hypothalamus) hypothyroidism. In primary hypothyroidism, TSH levels are significantly elevated, while in secondary and tertiary hypothyroidism, TSH levels are low or normal. Elevated or low TSH in the context of normal free thyroxine is often referred to as subclinical hypo- or hyperthyroidism, respectively.
What is Free Thyroid Profile (ft3, Ft4, Tsh) ?
A Thyroid Profile test is a group of tests that helps evaluate the functioning of the thyroid gland and diagnose thyroid disorders. These tests measure the levels of thyroid hormones such as T3, T4, and TSH in the blood. T3 and T4 are highly protein-bound hormones and can be affected by numerous factors like illness, medications, and genetic factors that influence protein binding. Therefore, it is useful to measure the free or unbound hormone levels, which correspond to the biologically available hormone pool. In primary hypothyroidism, thyrotropin (TSH) levels will be elevated. In primary hyperthyroidism, TSH levels will be low. The ability to quantify circulating levels of TSH is important in evaluating thyroid function. It is especially useful in the differential diagnosis of primary (thyroid) from secondary (pituitary) and tertiary (hypothalamus) hypothyroidism. In primary hypothyroidism, TSH levels are significantly elevated, while in secondary and tertiary hypothyroidism, TSH levels are low or normal. Elevated or low TSH in the context of normal free thyroxine is often referred to as subclinical hypo- or hyperthyroidism, respectively.
What is the Cost of Free Thyroid Profile (ft3, Ft4, Tsh)
The Price of a Free Thyroid profile test is Rs. 750. However, cost of the test may fluctuate depending on following factors:
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Other tests advised along with this thyroid test
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Offers or discounts
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Empanelment of the patient
What is the Purpose of the Free Thyroid Profile (ft3, Ft4, Tsh) ?
Free Thyroid Profile is advised to for following analysis:
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Screening: Even before symptoms appear, the Free Thyroid Profile is used to screen people for thyroid dysfunction. For those at greatest risk like older adults, pregnant women, and people with a family history of thyroid disease, routine screening becomes very crucial.
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Diagnosis: This profile is essential for determining the underlying cause of thyroid imbalance symptoms like mood swings, weight fluctuations, and fatigue. It assists in determining whether the symptoms are caused by thyroid-related disorders such as hyperthyroidism, hypothyroidism, or other conditions.
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Monitoring: The Thyroid Profile is used to track the disease's advancement and treatment efficacy following a thyroid diagnosis. Frequent monitoring ensures that thyroid hormone levels stay within the desired range, enabling prompt therapy modifications.
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Assessing the Impact of Medical Conditions and Treatments: The Thyroid Profile can also be used to evaluate the impact of other medical conditions or treatments on thyroid function, such as pregnancy or specific medications. This supports the maintenance of optimal thyroid health through informed decision-making.
When is the Free Thyroid Profile (ft3, Ft4, Tsh) Recommended ?
If you have following symptoms, then free Thyroid Profile is advised:
For Hypothyroidism:
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Slower-than-usual heart rate
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Fatigue
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Increased sensitivity to cold
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Unexplained weight gain
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Dry skin
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Dry and coarse hair
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Depression
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Heavy menstrual bleeding
For Hyperthyroidism:
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Faster-than-usual heart rate
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Difficulty in sleeping
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Unexplained weight loss
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Increased sensitivity to heat
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Clammy or sweaty skin
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Anxiety
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Irritability
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Nervousness
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Irregular menstrual cycles or a lack of periods
Preparation for Free Thyroid Profile (ft3, Ft4, Tsh)
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Unless otherwise directed by your doctor, there is no need for you to make any special preparations before the free thyroid profile.
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Other blood tests can be carried out in addition to a free thyroid profile. If your doctor advises you to have multiple tests at once, they may ask you to fast for a specific period of time prior to a blood test.
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Drink adequate water before sample collection.
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Avoid vigorous physical activity before the sample collection.
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Follow the preparatory instructions as guided by your doctor.
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