Question 1

What is Hyperthyroidism?

Accepted Answer

Hyperthyroidism is a condition in which the thyroid gland is overactive and there is an increased production of thyroid hormones by the thyroid gland. Causes of Hyperthyroidism include Graves’ disease, multinodular goiter, thyroid nodules, toxic adenoma, inflammation of the thyroid, eating too much iodine, and too much synthetic thyroid hormone. Diagnosis of this condition can help to relieve the symptoms and prevent long-term complications.

Question 2

What are the symptoms of Hyperthyroidism?

Accepted Answer

Symptoms of Hyperthyroidism include: Rapid heartbeat (tachycardia) — commonly more than 100 beats/minute — irregular heartbeat (arrhythmia) or pounding of your heart (palpitations), sudden weight loss, nervousness, anxiety, irritability, tremor (usually a fine trembling in your hands and fingers), changes in menstrual patterns, increased sensitivity towards heat, changes in bowel patterns (especially more frequent bowel movements), an enlarged thyroid gland (goiter) which may appear as a swelling at the base of your neck, increased appetite, sweating, fatigue, muscle weakness, sleep disturbances, skin thinning, fine and brittle hair.

Question 3

What is Hypothyroidism?

Accepted Answer

Hypothyroidism, also called underactive thyroid or low thyroid is a condition in which the thyroid gland does not produce enough thyroid hormones. It can be commonly caused by intake of low iodine diet or Hashimoto's thyroiditis (an autoimmune disease). Less common causes include previous treatment with radioactive iodine, injury to the pituitary gland which secretes TSH, intake of certain medicines, previous thyroid surgery, or a lack of a functioning thyroid gland at birth.

Question 4

What are the symptoms of Hypothyroidism?

Accepted Answer

Hypothyroidism can cause symptoms such as tiredness (fatigue), hoarseness, constipation, feeling cold, dry skin, dry and thin hair, puffy face, weight gain, and muscle weakness. Along with that, one may experience decreased sweating, depression, slowed heart rate, increased blood cholesterol levels, pain, and stiffness in your joints, impaired memory, problems of infertility or menstrual changes, muscle stiffness, aches, and tenderness.

Question 5

Are there any special precautions that need to be taken before the test?

Accepted Answer

Inform the doctor if you are taking any medicine or herbal product since some medicines like birth control pills, estrogen, Lithium, Prednisone, Amiodarone, etc. might interfere with the test results. A recent X-ray with iodine dye (contrast) or test using radioactive materials may also affect the results. Moreover, TSH levels show circadian variation (fluctuates during the 24 hour cycle) hence, sample for TSH test should be given at the same time in follow up cases.

Question 6

What additional tests your doctor may ask for in case the TSH levels are not in the normal range?

Accepted Answer

If the TSH levels are not in the normal range, your doctor may ask for the following tests to establish the diagnosis of a suspected disease:
T4 thyroid hormone test, T3 thyroid hormone test, Thyroid Hormone Binding Globulin (THBG) test, and Thyroid profile.

Question 7

How can hyperthyroidism affect a pregnant woman and her baby?

Accepted Answer

An untreated hyperthyroidism during pregnancy can lead to miscarriage, premature birth, low birth weight of the baby, preeclampsia (a very high rise in blood pressure in late pregnancy), thyroid storm (a sudden, severe worsening of symptoms of hyperthyroidism) and congestive heart failure.

Question 8

How can hypothyroidism affect a pregnant woman and her baby?

Accepted Answer

An untreated hypothyroidism during pregnancy can cause preeclampsia (a very high rise in blood pressure in late pregnancy), anemia, miscarriage, low birth weight of the baby, stillbirth (death or loss of a baby before or during delivery) and rarely, congestive heart failure. These problems are noticed mostly as a result of severe hypothyroidism. The mother’s thyroid hormones play an important role in the development of the baby’s brain and nervous system. Untreated hypothyroidism, especially during the first trimester can cause low IQ and can hinder the baby’s normal development.

Question 9

What are the causes of high TSH in a newborn?

Accepted Answer

Congenital hypothyroidism is an important cause of elevated thyroid-stimulating hormone (TSH) in newborns. Other causes of an elevated TSH include transient hypothyroidism due to neonatal illness, premature birth, iodine excess or deficiency. High TSH can also be seen in case the mother is taking some medicines that could affect thyroid hormone levels or the mother has some underlying thyroid disease.

Question 10

How is the blood sample taken?

Accepted Answer

The healthcare provider takes a blood sample from the arm. The site from where the blood is to be withdrawn is cleaned with a swab of rubbing alcohol. This is then followed by inserting a small needle which has a tube attached to it for collecting blood. Once the sufficient blood for analysis is withdrawn, the needle is removed. The site is then covered with a gauze pad.

Question 11

Is there any risk associated with the withdrawal of blood sample procedure?

Accepted Answer

As such there is no risk but in few cases, bruising, bleeding, and infection at the puncture site can be seen. In very few cases, there can be swelling of the vein after the blood is withdrawn.

Premature Infants (28-36 Weeks)
1st Week of Life	0.20-27.90 mIU/L
Term Infants (>37 Weeks)
Serum or Cord Blood	1.00-39.00 mIU/L
1-2 Days	3.20-34.60 mIU/L
3-4 Days	0.70-15.40 mIU/L
5 Days-4 Weeks	1.70-9.10 mIU/L
1-11 Months	0.80-8.20 mIU/L
1-19 Years	0.50-4.30 mIU/L
≥20 Years	0.40-4.50 mIU/L
Pregnancy
First Trimester	0.26-2.66 mIU/L
Second Trimester	0.55-2.73 mIU/L
Third Trimester	0.43-2.91 mIU/L

Price in	Bangalore	Rs. 229
Price in	Allahabad	Rs. 229
Price in	Hyderabad	Rs. 229
Price in	Bhopal	Rs. 229
Price in	Chandigarh	Rs. 229

Thyroid Stimulating Hormone, Ultrasensitive

Understanding Thyroid Stimulating Hormone, Ultrasensitive

What is Thyroid Stimulating Hormone, Ultrasensitive?

What is Thyroid Stimulating Hormone, Ultrasensitive used for?

What does Thyroid Stimulating Hormone, Ultrasensitive measure?

Interpreting Thyroid Stimulating Hormone, Ultrasensitive results

Interpretations

The TSH normal range may vary from lab to lab.

The TSH normal range for different age groups is given below:

Patients (Age) TSH Normal Range

Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Thyroid Stimulating Hormone, Ultrasensitive

Frequently Asked Questions about Thyroid Stimulating Hormone, Ultrasensitive

Q. What is Hyperthyroidism?

Q. What are the symptoms of Hyperthyroidism?

Q. What is Hypothyroidism?

Q. What are the symptoms of Hypothyroidism?

Q. Are there any special precautions that need to be taken before the test?

Q. What additional tests your doctor may ask for in case the TSH levels are not in the normal range?

Q. How can hyperthyroidism affect a pregnant woman and her baby?

Q. How can hypothyroidism affect a pregnant woman and her baby?

Q. What are the causes of high TSH in a newborn?

Q. How is the blood sample taken?

Q. Is there any risk associated with the withdrawal of blood sample procedure?

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