FREE T4

250

Additional information
DepartmentIMMUNOLOGY
Speciality NameFREE T4
Test typePathology
Report24 Hours
Also known as
AvailabilityAll centre

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Preparation

No Patient preparation is needed.

Overview

Free T4 or thyroxine hormone is secreted by the thyroid gland which is a butterfly like gland. There are various hormones secreted by the thyroid gland like T3 and T4. T4 or thyroxine is an important hormone for the body functioning. It helps in the metabolism, growth, development, heart rate, digestion etc. This hormone is bound with protein and some part of this hormone is called the free T4 hormone. This test is used to detect the concentration of this hormone in the body and helps to assess the function of the thyroid gland. The price of a free T4 test in Delhi is INR 199 to INR 500.

What is the Free T4 Test?

The Free T4 test is the blood test which is used to measure the concentration of thyroxine or T4 hormone in the blood in a free state. This helps to assess the condition of the thyroid gland and its working condition. This test is done with other tests like:

  • TSH (Thyroid Stimulating Hormone)
  • T3 or Free T3

What is the Normal Range of Free T4 in Blood

Normal values may vary slightly depending on the laboratory.

S. No.CategoryNormal Range
1Adults0.8 – 1.8 ng/dL
2ChildrenAge-dependent
3PregnancySlightly higher normal range

 

What is the Purpose of the Free T4 Test?

There are various purposes of T4 test and these include:

  • Diagnosis of Thyroid Disorders
  • Evaluation of Symptoms
  • Monitoring Thyroid Treatment
  • Evaluation of Pituitary Function
  • Assessment During Pregnancy

What is the Procedure of the Free T4 Test?

There are various steps involved in the procedure of Free T4 test and these include:

  1. Blood samples are collected from the arm.
  2. The collected blood sample is sent to the laboratory for analysis.
  3. Results can be collected on the same day within 12 to 24 hours.

Preparation:

  • Fasting is not required
  • Thyroid medication may be withheld on the morning of the test if advised
  • Inform the doctor about all medications and supplements

What is the Interpretation of Results

S. No.Free T4 LevelPossible Interpretation
1LowHypothyroidism
2NormalNormal thyroid function
3HighHyperthyroidism

Free T4 vs Total T4

S. No.FeatureFree T4Total T4
1MeasuresActive hormoneBound + free hormone
2Affected by proteinsNoYes
3Diagnostic accuracyHigherLower in some conditions

What are the Benefits of the Free T4 Test?

  • Accurate assessment of thyroid function
  • Detects thyroid disorders early
  • Useful in pregnancy and chronic illness
  • Helps guide treatment decisions
  • Simple and quick blood test
  • Not affected by protein changes

What is the Clinical Importance of Free T4 Test?

Abnormal Free T4 levels can cause:

Low Free T4:

  • Fatigue
  • Weight gain
  • Depression
  • Cold intolerance
  • Slow heart rate

High Free T4:

  • Weight loss
  • Anxiety
  • Tremors
  • Palpitations
  • Heat intolerance

What are the Limitations of the T4 Test?

  • Single test may not give full picture
  • Needs correlation with TSH and symptoms
  • Acute illness can affect results

What is the Free T4 test price in Delhi?

The price of Free T4 test in Delhi is INR 199 to INR 500, which may slightly vary depending on various factors like location of diagnostic centre, discounts available, membership of centre etc. Patients can also look for accreditation of NABL and NABH before going for the Free T4 test in Delhi.

How can I find a Free T4 test centre near me?

If you are searching for Free T4 test near you in Delhi, you can visit City Imaging and Clinical Labs. The lab offers accurate testing at affordable prices. It is NABH and NABL accredited and has experienced doctors with trained staff for reliable diagnostic testing of Free T4 testing.

 

Frequently Asked Questions (FAQ’s)

 

Can stress affect test results?

Severe illness or stress may alter levels.

Should thyroid medicine be stopped before the test?

Only if advised by the doctor.

How often should Free T4 be tested?

As recommended during treatment.

Are results available the same day?

Yes, results are usually available on the same day.

Does Free T4 alone confirm thyroid disease?

No, it should be interpreted with TSH.

Is Free T4 hormone present in women?

Yes, it is present in women in smaller quantities.

What is the price of the Free T4 test in Delhi?

The Free T4 test price is INR 199 to INR 500 in Delhi.

Why is a Free T4 test done?

To assess the levels of Free T4 in the body.

Does exercise affect Free T4?

Moderate exercise supports healthy levels.

Can Free T4 affect mood?

Yes, it influences mood and energy.

Is this a test routine?

It is done when hormonal imbalance is suspected.

Is the Free T4 test expensive?

No, it is not an expensive test.

How much time does it take for the Free T4 test?

Sample collection takes 5 minutes and reports can be collected within 12 to 24 hours.

Is Free T4 a routine test?

It is commonly advised when anemia or fatigue is present.

Is the Free T4 test painful?

No, this test is not painful, but it makes patients uncomfortable during the needle prick.

Where is the Free T4 Centre near me in Delhi?

Patients can visit City Imaging and Clinical labs for Free T4 test or any other type of blood test in Delhi.

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