Archive for the tag: Tests

Understanding Thyroid Function Tests

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This video contains a visual explanation of thyroid function tests, including the results in hypothyroidism and hyperthyroidism, antibody tests and thyroid imaging (ultrasound and radioactive isotope scans).

Written notes on thyroid function tests can be found at https://zerotofinals.com/medicine/endocrinology/thyroidfunctiontests/

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Everything you need to know about TFTs blood test, including THYROID SYMPTOMS
From a Junior Doctor, for Medical Students

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00:00 – Blood test intro
00:19 – Thyroid axis
01:21 – Primary hyperthyroidism
02:04 – Secondary hyperthyroidism
03:00 – Primary hypothyroidism
03:45 – Secondary hypothyroidism

– My full chest x-ray tutorial series:
https://www.udemy.com/course/chest-x-ray-interpretation/?referralCode=6AC49819156F3054239D

– My full abdominal x-ray tutorial series:
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Thyroid Function Tests- what your results can mean

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If you’ve had thyroid function tests and received the results, this easy-to-understand short animation explains what they are measuring and what you are likely to see on the form.

These are blood tests used to check how your thyroid is working. They measure thyroid stimulating hormone or TSH, Thyroxine or T4 and Triiodothyronine or T3

The thyroid gland is found at the base of the neck. It produces thyroid hormones and releases them into the bloodstream. They control your body’s metabolism and regulate things like your heart rate and body temperature. It is important that your thyroid hormones levels are not too high or low and that they are kept in an even balance. If your T4 levels are low you may feel tired or experience weight gain. This is called Hypothyroidism . If your T4 levels are too high everything runs at a faster rate. You may experience heat intolerance or weight loss. This is Hyperthyroidism. There is a feedback mechanism to make sure levels remain stable. The pituitary gland controls T4 levels. WhenT4 levels are too low it releases more TSH. WhenT4 levels are too high it releases less TSH. In the blood sample sent to the lab we measure TSH, Free Thyroxine (FT4) and Free Triiodothyronine (FT3).

Thyroid function tests (TFTs) and labs explained in under 7 minutes (ish)

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Thyroid function tests (TFTs) and labs explained easily in under 7 minutes (ish). First, we’ll be looking at the thyroid hormonal excess and once you understand the key players we’ll move on to see how I look at thyroid blood lab results. Learn how to interpret TFTs and to see if a patient has hypothyroid, euthyroid, or hyperthyroid.

Now the tricky part – how to read and analyze the blood tests when it comes to thyroid function tests (TFTs). Simples – watch the video and here are some timestamps to help guide you along the way.

0:00 – Intro
0:33 – Thyroid Hormonal Axis/The hypothalamic pituitary thyroid axis
1:26 – Primary care blood tests done in the UK
1:43 – Hyperthyroidism (Primary and secondary)
3:34 – Hypothyroidism (Primary and secondary)
5:03 – Subclinical hypothyroid/ subclinical hyperthyroid
6:34 – Outro – take attempt 675 (ish)

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Thyroid Hormonal Axis:

The hypothalamus in the brain releases TRH (thyroid releasing hormone), which in turn stimulates the pituitary gland to release TSH (Thyroid secreting hormone. This pretty much does what it says on the tin. It goes to the thyroid gland and – yup you guessed it stimulates it to create T4 and T3. This, in turn, acts as a negative feedback loop back to the hypothalamus and the circle of life is complete folks!

High levels T4/T3 will slam the brakes and reduce the TRH and TSH production. Likewise low levels of T4/T3 then TRH and TSH levels rise – in order to normalize the low T4/T3.

What are normal T3, T4 and TSH (thyroid function test results)? In the UK this can vary between labs so check locally. My local labs have the following results:

TFT Normal Ranges:

TSH 0.4 – 4.0 mU/l (milliunits per litre)
FT4 9.0 – 25.0   pmol/l (picomoles per litre)
FT3 3.5 – 7.8 pmol/l (picomoles per litre)

From: https://www.btf-thyroid.org/thyroid-function-tests

All information included is for educational purposes and not for medical use, application, or advice. Please use your own clinical judgment and local protocols. Phew, now that boring legal stuff is out of the way…

If you’re new here – Hey, I’m Khalid and I work as a family physician or General Practioner here in London. Follow my journey as I reflect on the lessons learnt from my time as a pre-med, medical student, junior doctor, GP trainee, and now as a family physician.

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Thyroid Blood Tests | Thyroid Series | Dr.Ravi Sankar | Endocrinologist | Hi9

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Thyroid Blood Tests from Hi9 by Dr.Ravi Sankar Endocrinologist working at Apollo Hospital
When we speak about Thyroid blood test we are speaking about simple blood test related to Thyroid Hormones such as TSH free T4 and free T3 these are the names of the common Thyroid blood test that you might see when you go to a laboratory to give your blood for Thyroid blood test
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How is a Concussion Diagnosed? Signs, Symptoms and Tests

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http://triangletbiconcussiondoctor.com Dr. David Clark, DC–Raleigh Durham Chapel Hill concussion doctor– explains how a concussion is diagnosed. The answer will surprise you.

20% of Concussion victims will STILL suffer, even after 30 days of rest. The most common symptoms of Post-Concussion Syndrome are:
Fatigue
Dizziness
Vision problems
Headache
Trouble concentrating
Anxiety
Memory loss
Neck pain
Insomnia/sleep disturbance

Dr. David Clark, DC
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Vestibular Rehab Specialist (ACNB)

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Thyroid Hormones and Thyroid Function Tests

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An overview of the synthesis, regulation, and function of thyroid hormones, as well as the interpretation of thyroid function tests.

Meena S. Murthy MD Thyroid and Diabetes Center at Saint Peter’s University Hospital, shows how to perform a Thyroid self-examination and explains what the thyroid gland does, how it works and symptoms related to Thyroid issues.

This educational video is not intended to replace a doctor’s visit. Please see a physician to have a checkup performed.

http://www.saintpetershcs.com/Thyroid-and-Diabetes-Center/
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