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Doctor insights on: Do You Need To Fast For The Thyroid Antibody Test

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Do you need to fast for thyroid antibodies test?

Do you need to fast for thyroid antibodies test?

Thyroid antibodies: No . Fasting is not necessary for thyroid tests of any kind. You only need to fast for tests affected by your blood glucose-related hormones, like your blood sugar test and your lipid profile ; even the lipid profile can be done non- fasting, some experts say nowadays. ...Read more

Antibody (Definition)

An antibody is a protein the body's immune system makes to identify potentially harmful substances in the body. Antibodies attach to the substance on a molecular level and mark it so the immune ...Read more


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Thyroid antibody tests are v expensive.I wud like 2know if der was any basic test dat i cud take 1st & if antibodies r confirmd, i wud take d advanced?

Thyroid antibody tests are v expensive.I wud like 2know if der was any basic test dat i cud take 1st & if antibodies r confirmd, i wud take d advanced?

Depends: Whether thyroid antibodies be obtained or not depends on what you are looking for. You will need to ask the doctor who ordered the test as to whether this is necessary and if there are other options. ...Read more

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What does a thyroid antibodies tests consist of?

What does a thyroid antibodies tests consist of?

Antibody test: This is a blood test for antibodies that mediate thyroid inflammation. ...Read more

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Why would my thyroid antibodies test be negative?

Why would my thyroid antibodies test be negative?

Autoimmune thyroid: Anti-tpo antibodies are usually elevated in people with hashimotos thyroiditis and often with graves disease. However, the test is not perfect, and is sometimes negative, even if you have hashi. Also, some labs don't perform the test well. See your endocrinologist. ...Read more

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Why would I need a microsomal thyroid antibody level test?

You don't: A newer test is a tpo ab which is positive in 85% of people with hashimoto's and grave"s. ...Read more

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Dr. Referring me to an endo. because my TPO antibody test came back 26 rather than <21 is this indicating something? Have thyroid symptoms too.

Dr. Referring me to an endo. because my TPO antibody test came back 26 rather than <21 is this indicating something? Have thyroid symptoms too.

Need full panel.: The presence of these antibodies does not obligate you to have a problem with your thyroid, now or even in the future. But you do need a full set of thyroid blood tests if you are symptomatic. This would be TSH, total T4, free T4, total T3 and T3 uptake. Perhaps a thyroid ultrasound and scan. ...Read more

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Thyroid antibody test results: TPO <6 range was 0-34 Thyroglobulin Antibody 2.3 -range is 0.0-0.9 It was high, what does this mean and what do I do?

Thyroid antibody test results: TPO  <6 range was 0-34
Thyroglobulin Antibody 2.3 -range is 0.0-0.9  It was high, what does this mean and what do I do?

Antithyroid antibody: those are normal/low numbers for anti thyroid antibodies, basically they detect auto antibodies against thyroid gland/Its products, sometimes following a viral infection, at this point if no clinical problem your doctor will just follow it up no specific action, it's up to the treating physician ...Read more

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My thyroid functioning test is normal, but my thyroid antibody test shows tg <1.00 iu/ml reference is 4.11 tpo <0.16 iu/ml reference is 5.6?

My thyroid functioning test is normal, but my thyroid antibody test shows 
 tg <1.00 iu/ml      reference is 4.11
tpo <0.16 iu/ml     reference is 5.6?

It is normal: That means normal. You are fine and you don't have to worry. You are not supposed to have antibody to tg or antibody to tpo. If you do-that means you may have autoimmune thyroiditis. ...Read more

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I want to check if i have thyroid antibodies? What is the basic test for the same? I would go to d advanced tests after i confirm the basic one.

Let doctor pick: It would be prudent to consult a doctor before you get the tests done as you may not need any. In case you do need, your doctor should pick the tests, based on your thyroid function test results and family history. ...Read more

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I want to check if i have thyroid antibodies? What is the basic test for the same? I would go to d advanced tests after i confirm the basic one.

I want to check if i have thyroid antibodies? What is the basic test for the same? I would go to d advanced tests after i confirm the basic one.

Yes, standard: blood test is antithyroid microsomal antibodies (also called anti-TPO), thyrotropin receptor antibodies (TRAbs) and thyroglobulin antibodies. Mainly the first. Further studies would be thyroid hormone levels and examination of the thyroid probably involving biopsy. ...Read more

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Thyroid antibody test very high, cancer?

Thyroid antibody test very high, cancer?

Not necessarily: It could be a signal just of inflammation in the thyroid or a recent infection. To be sure, have it retested in about 6 weeks. ...Read more

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Is it safe for me to carry a babyif I have a high thyroid peroxidasc antibody test result?

Why not?: I don't see any reasons why you should not carry a baby providing that you are healthy enough to carry one. High thyroid peroxidase antibody is associated with autoimmune thyroiditis. It is not infectious and should not transmit to the baby. ...Read more

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Test results for throid antibodies were Anti-thyroglobulin Ab is 137 and Anti-thyroid per oxidase Ab 200 what does this mean?

High antibodies : Your antibodies against your own thyroid are high. You need to work with your doctor to figure out why. I take my patients off of gluten and encourage them to do a comprehensive elimination diet. A functional or integrative medicine doctor can work with you to find and address root causes. ...Read more

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My doctor told me i have thyroid antibodies. She ran a bunch of test and said everything was okay. Should i get a second opinion. What does it mean?

My doctor told me i have thyroid antibodies. She ran a bunch of test and said everything was okay. Should i get a second opinion. What does it mean?

Thyroid antibodies: Sometimes we make antibodies to our own organs. The antibodies may result in damage to the organ, but when the damage might result in symptoms is not known. If she "checked" you, she probably looked at your thyroid hormone levels. You need to be rechecked periodically, but not right now. Request copies of the tests and ask her to explain what they mean at an office visit, and ask when to recheck. ...Read more

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My thyroid antibodies test came back as 10.6 (should be less than 1.8) I have been diagnosed with Graves. Should l be concerned about my results?

Thyroid antibodies: You do not say which antibodies are positive. TPO antibodies are found in either Graves or Hashimotos. TSI is part of Graves. Either way, antibodies don't impact the treatment plan. If you are hyperthyroid (elevated FT4) then you need treatment, typically medications, radioactive iodine, or surgery. Talk to your Endocrinologist about the options. ...Read more

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I got my test results back from my obgyn stating that my T3 and T4 levels are normal but I have high thyroid Antibodys so what does that mean could be?

I got my test results back from my obgyn stating that my T3 and T4 levels are normal but I have high thyroid Antibodys so what does that mean could be?

See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, the incomplete information you provided suggests that you may be at risk for thyroid insufficiency and should follow your doctor's advice for repeat testing. ...Read more

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Negative result for thyroid peroxidase antibodies tpoab . Necessary to test my thyroglobulin antibodies tgab ?

Negative result for thyroid peroxidase antibodies  tpoab .  Necessary to test my thyroglobulin antibodies  tgab ?

Anti-thyroglobulin: Studies have shown that 99% of patients with hashimoto's thyroiditis have anti-microsomal antibodies, whereas only about 1/3rd had anti-thyroglobulin antibodies. In addition, 10-20% of persons without thyroid problems have anti-throglobulin antibodies (tg-a). These persons are likely at higher risk for future problems and should be watched more closely however, testing for tg-a is not necessary. ...Read more

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Deciphering a thyroid hormone test result: is an antithyroglobulin antibody titer of 1:50 too high, or is it alright?

It depends: Antithyroglobulin antibody is not a thyroid hormone test. It tells you nothing about the function of your thyroid. It can indicate that you have autoimmune thyroid disease, but your level is not very high. Mild elevations are non-specific and occur more commonly in the population as we get older. Thyroid function is indicated by t4, tsh, and T3 (liothyronine) levels. ...Read more

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My blood test showed an elevated level of tg antibodies. Does that mean I have cancerous cells running around? Had papillary thyroid cancer a year ago

My blood test showed an elevated level of tg antibodies. Does that mean I have cancerous cells running around? Had papillary thyroid cancer a year ago

Not necessarily.: Having elevated tg antibodies primarily means that the more important tg test itself will be falsely lower than its true value. (no conversion formula exists.) if your tg antibodies are only 20 or so, with an undetectable tg level, it is hard to know what that means. If your tg antibodies are much higher, then concern for the presence of thyroid cancer would increase. ...Read more

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Dr. John Landi
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more