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Doctor insights on: Thyroid Negative Feedback

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Thyroid Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?have Hypo symptoms

Thyroid Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?have Hypo symptoms

Elevated: TPO levels are associated with autoimmune thryroid disease/thryoiditis, for example Hashimoto disease. The thyroid US findings are also consistent with thyroiditis. Talk to your doc about next steps. ...Read more

Dr. Howard Schneider
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


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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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Is pancreatitis diagnosis a positive feedback or negative feedback?

Is pancreatitis diagnosis a positive feedback or negative feedback?

Let me clarify: Pancreatitis the illness can be a positive feedback loop; the inflamed pancreas releases pancreatic digestive enzymes within the tissue (instead of sending them out the pancreatic duct) and the pancreatitis gets worse, leading to a positive feedback loop. The best way to stop this positive feedback loop is to stop eating, which turns digestive enzyme production in the pancreas 'off'. ...Read more

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Thyroid swelling. Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test-normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?

Thyroid swelling. Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test-normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?

Hard to say: Ive yet to have anyone NOT have elevated TPo but I havent sent many. The standard answer would be that it likley is GRAVES disease starting but if there arent a lot of symptoms and the labs are normal you wouldnt give treatment. Retesting if symptoms and at about every 3 months. ...Read more

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Had a TRH (thyrotropin) stimulating test to evaluate HPT axis. TSH at 0, 30, 60 min, respectively 1.48, 1.34, 1.10, explanations for abnormal results?

Had a TRH (thyrotropin) stimulating test to evaluate HPT axis. TSH at 0, 30, 60 min, respectively 1.48, 1.34, 1.10, explanations for abnormal results?

Need more info: Hi. The TRH stim test is almost NEVER necessary. What's your baseline thyroid status? We need to know why someone even wanted to run that test. I'm not gonna start guessing on this one one. Good luck! ...Read more

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Tthyroid test results tsh 1.42 ft4 15 what do these results mean?

Is FT4 correct?: Your TSH appears normal. Did you have a typp with the ft4, as a value of 15 is an order of magnitude too high. 1.5 would be normal. Another possibility is that the 15 is a T4 not a ft4. Either way, it's hard to tell but probably normal. Check w/your doctor. ...Read more

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Cummulative thyroid function test TSH levels?

I'm sorry: But i don't understand your question. What are cummulative thyroid function tests? If there's a problem with your tsh, check w/your doctor. ...Read more

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Lab tests: SED 25, glucose 80, luteinizing horm 5.0, thyroid stimulating horm 0.966, FSH 7.1. All on 12/17/14. Related to chronic hives?

Lab tests: SED 25, glucose 80, luteinizing horm 5.0, thyroid stimulating horm 0.966, FSH 7.1. All on 12/17/14. Related to chronic hives?

No: See a dermatologist. Do you take aspirin or any meds or any herbs or vitamins, etc.? Hives for over 6 weeks is termed chronic urticaria and is usually not allergy. Meanwhile you can try Zyrtec (cetirizine) (cetirazine) 1 or 2 a day. Sometimes larger doses may be used. There is a chance it could make you sleepy. ...Read more

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Thyroid ultrasound results showed hyperthyroidism but blood tests came back saying hypothyroidism TSH 11.4 antibodies teat also came back high?

Thyroid ultrasound results showed hyperthyroidism but blood tests came back saying hypothyroidism TSH 11.4 antibodies teat also came back high?

Size v function: The ultrasound can only tell you the anatomy of the thyroid whereas the blood tests tell you how it functions. In your case, you have low thyroid function and probably an enlarged thyroid. ...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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0.024 TSH, Normal T3 (liothyronine) and T4, postive antibodies, depressed iodine uptake test. Please interpret results? Confused and not getting answers..

0.024 TSH, Normal T3 (liothyronine) and T4, postive antibodies, depressed iodine uptake test. Please interpret results? Confused and not getting answers..

Thyroid tests result: If you have normal output of thyroid hormone (T3,T4) from your thyroid gland then the level of the thyroid stimulating hormone (TSH) should be low, which it is! I'm not sure why your doc ran a thyroid uptake test because you say you have normal thyroid hormone output. Ask the doc for the reason for doing a test. It should always be a good reason that you should understand. ...Read more

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Test results are multinodular goiter so radionuclide thyroid scan?

Test results are multinodular goiter so radionuclide thyroid scan?

Need more info: Not sure what you mean by "test results" but u cannot know that u have multinodular goiter from a blood test. A thyroid ultrasound can give u this diagnosis in which case u will need a blood test called TSH to know what to do next. No thyroid scan needed unless the TSH is low. Thyroid ultrasound vs. Biopsy might be needed depends on the size and characteristics of the nodules but need more info. ...Read more

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Positive for thyroid paroxidase antibodies and thyroglobulin antibodies. What does this mean? Had pap thyroid cancer in 2008 with thyroidectomy

Positive for thyroid paroxidase antibodies and thyroglobulin antibodies. What does this mean? Had pap thyroid cancer in 2008 with thyroidectomy

Immunity to thyroid: The thyroid makes thyroglobulin (tg) and thyroid peroxidase (tpo). Even though you had your thyroid removed, your body's immune system sees tg and tpo as foreign and has made antibodies to them. This means that following your tg as a way to monitor your thyroid cancer might be unreliable. It could also mean you have thyroid tissue that is still present in your body. Ask your endocrinologist! ...Read more

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Thyroid testing results. Free T4 1.10, Free T3 (liothyronine) 2.7, TSH 0.313, TSI 49. Normal or not? See endocrine dr Wednsday.

Thyroid testing results. Free T4 1.10, Free T3 (liothyronine) 2.7, TSH 0.313, TSI 49. Normal or not? See endocrine dr Wednsday.

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, your results seem to be in the normal range. ...Read more

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Acth stimulation test results accurate?

Acth stimulation test results accurate?

Depends: I'm assuming no lab errors. If you get a very high cortisol spike after receiving the first dose of ACTH, you are reassured you do not have Addison's. No, or a very small spike, strongly suggests Addison's. In-between... that's why there are specialist endocrinologists. ...Read more