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You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

How Often Should You Get a Thyroid Blood Test?

The thyroid gland produces two important hormones, T3 (triiodothyronine) and T4 (thyroxine), which are concerned with metabolism. Malfunctioning of the thyroid gland manifests either in the form of overproduction or underproduction of hormones. When the hormone levels are above normal, the condition is known as hyperthyroidism and when they are abnormally low, it is called hypothyroidism.

Hypothyroidism

Hypothyroidism usually affects middle-aged and older people. It shows up in the following symptoms, depending on how severe the deficiency is: fatigue and weakness, weight gain, cold intolerance, memory loss, dry skin, constipation, depression, muscle aches and joint pain, swelling, or stiffness, thinning hair and brittle nails, increase in blood cholesterol levels

In infants, the symptoms (which may be few in number) include yellowing of the skin and eyes, frequent choking, a protruding tongue, and a puffy face. They also have constipation, sleepiness, and muscle tone problems.

Children and teenagers experience stunted growth, delayed development of permanent teeth, delayed puberty and poor mental development.

Hyperthyroidism

This disorder may be caused by an overactive thyroid. The most common cause of hyperthyroidism is an autoimmune disorder called Graves’ disease. Symptoms include high metabolic rate which leads to a high heart rate, high blood pressure and hand tremors. Other symptoms are frequent bowel movement, swollen thyroid gland, exophthalmos (prominent eyes), weight loss, irregular menstrual cycle, increased appetite, nervousness and restlessness, nausea, lack of concentration, hair fall, and difficulty sleeping.

Why is it important to get tested?

If left untreated, hypothyroidism can lead to further complications such as Goitre, Heart problems, mental health issues, peripheral neuropathy, myxedema, infertility and birth defects. Only through tests can the disorder be spotted early enough to avoid complications and to detect possible causes that can be serious.

Early diagnosis of hyperthyroidism and treatment help to avoid complications due to a condition like Graves’ disease which gets worse over time and becomes life-threatening. Hyperthyroidism can also lead to atrial fibrillation (a common but dangerous type of heart arrhythmia or irregular heartbeat that interrupts flow of blood and may lead to strokes) and congestive heart failure.

How is testing done?

A series of blood tests called thyroid function tests is done to measure T3, T4, and TSH (thyroid stimulating hormone secreted by the pituitary gland) and T3RU (resin T3 uptake). The tests for T4 and TSH are usually taken together and are the most common.

The thyroxine (T4) test reveals hyperthyroidism if T4 levels are high. It measures the amount of free T4 (which is not bound to protein) in the blood. The normal range is from 9.0 to 25.0 pmol/l (picomoles/litre).

The thyroid stimulating hormone (TSH) level test shows hyperthyroidism if the reading is abnormally low. Moderately low levels indicate normal thyroid hormone levels. The normal range is from 0.4 to 4.0 mIU/l (milli-international units of hormone/litre of blood). If the reading is above 2.0 mIU/l, there is a risk of hypothyroidism.

If these two tests point towards hyperthyroidism, the T3 test is taken. The normal range is 100 to 200 ng/dl. Any reading above this is considered abnormally high and is most likely an indication of Graves’ disease.

Cholesterol and triglyceride levels are also tested to indicate elevation in the metabolic rate.

If the blood tests show a functional imbalance in the thyroid gland, an ultrasound test is recommended to check for structural problems with the gland, gland activity, and tumours.

These conditions are treated with the help of medication that either stop or stimulate the thyroid gland’s activities. Surgery and radioactive iodine also serve as treatment for hyperthyroidism. A proper diet can prevent these disorders.

A TSH test is done once a year in case of hypothyroidism to check if the levels are within the normal range. The frequency of hyperthyroidism tests (usually TSH and T4) depends on the treatment. In any case, blood test are taken every few weeks in the beginning, and as the treatment stabilises, the frequency is reduced.

All these tests, are available at Apollo Diagnostics. Find your nearest Apollo Diagnostics centre here.

Book Your Test

* T & C

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only



Patient Testimonials

“Excellence of Apollo Diagnostics is already a recognized fact across India. Adding more strength to their reputation is their caring nature and supportive attitude. I’ll always prefer to take their services than selecting mediocre quality making any compromise with my health.”

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Subbalakshmi, Vizag

“Appreciate the quality of service that I’ve received from Apollo Diagnostics. Their competence, caring nature, sincerity, valuing customer’s time – all these together have shaped them as the most trusted diagnostic service provider in the country.
Keep up the good work!

Mrs. Pravati Dash, Bengaluru

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad

“Their accurate understanding of customer’s needs is one thing that set them apart and ahead of all others. As a result, it becomes easier for them to deliver the right service, that with their matchless efficiency and care to ensure less pain and easily accomplished sample collection. Apollo Diagnostics is simply doing an amazing job!”

Soundarya Abhirami, Hyderabad

“The overall service standard of Apollo Diagnostics is admirably high. The technician was punctual and well-behaved, and has the genuine skill to collect the test sample without troubling the customer. These are probably some of the major reasons for them to be the best in India.”

Mrs. Lakshmi, Chennai

“The most crucial factor with Apollo Diagnostics is that they always train their Phlebotomists so well that the team consistently remains efficient and punctual and we receive a premium quality diagnostic service. Good job. Keep it up.”

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Service they deliver is no less than the promise they make. Be it quality, respect for customer’s time, or efficiency of their technicians…simply matchless. I confidently recommend Apollo Diagnostics to everyone.”

Nanjappa, Mysuru