Thyroid Test Results Differ: : ThyroidMany people immediately get worried when there is a change in the inspection report after the inspection. In particular, if blood is tested in two different laboratories on the same day and the TSH, T3 or T4 numbers are different in both reports, the question arises as to which report is correct. But there is no need to jump to conclusions at such a time.
A slight difference between the two reports does not mean that the body's thyroid status has changed within hours. Medical Officer of Saifi Hospital in Mumbai Dr. According to Shaheen Guy, many things can affect thyroid test results. Laboratory equipment, testing method, time of blood sampling, and certain medications can cause differences in report numbers.Different Thyroid Reports:
First of all, the issue of laboratory is important. Not every lab uses the same equipment or testing procedures. The accuracy of the machine, its calibration and the test kit used may vary. Therefore, if the same person's sample is tested at two places, there may be a slight difference in the results. NABL accredited laboratories follow certain norms for quality control. Therefore, it is helpful to have regular tests done at a single trusted lab if possible.
TSH is an important factor in thyroid screening. But its level does not remain the same throughout the day. It may be relatively high in the morning hours and may change somewhat as the day progresses. So if two blood samples are taken at different times, it is possible that there will be some difference between the two reports. Not only the timing of the test is important, but also the body condition on that day.
Lack of sleep, stress or a recent illness can affect hormone levels. Some medications and supplements may also alter the test results.
In particular ThyroidIt is better to schedule the blood test with the doctor's advice for those who are taking medicines. It is often advisable to give the sample in the morning before taking the usual dose. A blood test immediately after taking the drug may show a temporary difference in some values. Some supplements for hair and nails should also not be overlooked.
The biotin they contain may affect the results of some thyroid tests. So if you are taking any supplement or medication, it is important to inform the doctor before the blood test.
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Certain medications can also have an effect. Therefore, it is not advisable to stop the drug on your own because of an unexpected change in the report. Instead it is more important to tell the doctor the complete list of medicines. In the case of women, special care should be taken when interpreting thyroid tests even during pregnancy. TSH levels can change due to natural hormonal changes in the body during this period. Therefore, the report of a pregnant woman is not viewed as a normal person.
How long after the blood sample is taken, it is tested in the laboratory and how it is stored is also important. Errors in sample handling, temperature differences, or delays in testing can sometimes affect results. So do not immediately assume that the disease has increased or decreased just because there is a minor difference between the two reports. In particular, if a number is slightly up and down, the doctor may order a repeat test depending on the situation.
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The most important thing is that the thyroid report alone does not determine the treatment. Doctors make decisions based on the patient's symptoms, past medical history, medications, and other test results. So, the next time two lab reports are different, instead of panicking, think about the timing of the test, the lab, the drugs and the condition of the body at that time. If possible, further tests are carried out in the same reliable laboratory and under roughly the same conditions, making it easier to compare old and new reports.
