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Doctor insights on: What Is Nuclear Scintigraphy Test For Thyroid

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Dr. Guido Davidzon
112 doctors shared insights

Nuclear Scans (Definition)

From a cardiac perspective nuclear scans are performed with either exercise or medications to examine the blood flow in the heart. Before and at peak exercise the patient is given a radio tracer which travels in the blood to the heart. Pictures are take before and after exercise and compared to evaluate for any blockages in the ...Read more


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What is thyroid scintigraphy?

What is thyroid scintigraphy?

Thyroid scan: This is a nuclear medicine test that allows your doctor to determine the size, shape, function and position of your thyroid gland. ...Read more

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What is adrenosine nuclear test preparation?

No caffeine 24 hrs: Among other things to withhold, caffeine is probably the most important as it negates the effect of adenosine, preventing any stress. Other common things are don't eat for at least 4 hours prior to the test, no chocolate, stop some medications. Call the testing office for their specific protocol. ...Read more

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What is a nuclear stress test?

What is a nuclear stress test?

Nuclear stress test: The patient walks on a treadmill or other exercise device or has a medication injected to simulate exercise, when the exercise or medicine is in progress a radioactive agent is injected which goes into the heart and can be imaged to show the blood flow into the heart muscle. The information shows if enough blood gets into the heart muscle and other information. ...Read more

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What is the test for diagnosing thyroid dysfunction?

Thyroid problems: There is no THE TEST. It depends on what kind of dysfunction you are looking for. A TSH is the single best test for diagnosing hypothyroidism, and may detect hyperthyroidism, coupled with a Free T4. Best to talk to your doctor about this. ...Read more

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Is thyroid nuclear scan a better test than ultrasound of the thyroid ?

Is thyroid nuclear scan a better test than ultrasound of the thyroid ?

Different no better: A thyroid nuclear uptake and scan is a functional test of your thyroid. It is useful in differentiating causes of thyrotoxicosis (excessive amounts of thyroid hormones in the body). A thyroid ultrasound is better to assess the anatomy of the thyroid gland and for guidance if biopsy is needed. ...Read more

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What is the diagnostic test for checking thyroid problems?

What is the diagnostic test for checking thyroid problems?

Function, neoplasia: Hi. Thyroid problems can be roughly broken down into two categories, disorders of thyroid function (hyperthyroidism and hypothyroidism) and disorders of neoplasia (cancer and benign). The tests for thyroid function are TSH and free T4 at a minimum; I also get free T3 (liothyronine) if I am monitoring hyperthyroidism. Neoplasia is checked by physical exam of thyroid and ultrasound; fine needle aspiration biopsy? ...Read more

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How is a nuclear function test done?

How is a nuclear function test done?

Gallbladder function: If you are referring to a functional test of the gall bladder which is done in nuclear medicine, it is a study known as a hepatobiliary scan. The test is performed by injecting a harmless radioactive tracer into the patient which is excreted in the bile. The tracer collects in the gallbladder. A medication is then given to stimulate the gallbladder. The amount of tracer "ejected" is then measured. ...Read more

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What does abnormal uptake on a thyroid nuclear scan mean?

Several things: The result of a thyroid uptake test could be abnormally increased or decreased. In the usa, the normal thyroid uptake range is approximately 10-30% at 24 hours. An increased result may be due to various reasons including: grave's disease, multinodular toxic goiter or hashitoxicosis. A decreased uptake could be due to subacute thyroiditis, iodine or amiodarone induced thyrotoxicosis among others. ...Read more

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What is anti nuclear antibody test for immunology?

What is anti nuclear antibody test for immunology?

A general screen..: A general screen for certain autimmune diseases. However, my favorite referral is a patient with a positive ana. I can tell most on revisit that it is a false positive. 5% off th population has a positive ana. Only 1/100 have an autoimune disease, associated with a positive ana. ...Read more

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What is the diagnostic test for cardiac asthma?

What is the diagnostic test for cardiac asthma?

Not asthma: This is not asthma. It's similar symptoms due to heart failure. Your doctor can test your heart (EKG, Echocardiogram) about heart failure and examine you. Treating cardiac asthma involves addressing the heart component. ...Read more

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What is the diagnostic test for cardiac asthma?

What is the diagnostic test for cardiac asthma?

Not asthma: This is not asthma. It's similar symptoms due to heart failure. Your doctor can test your heart (EKG, Echocardiogram) about heart failure and examine you. Treating cardiac asthma involves addressing the heart component. ...Read more

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Could you tell me what is the purpose of a myocardial perfusion scan [nuclear test]?

CAD: The purpose is to diagnose significant coronary artery disease (CAD). If the scan is positive for ischemic changes in the heart, then you will benefit from aggressive medical treatment, angiographic treatment, or surgery. If the scan is negative (and done properly), your risk for CAD or a significant injury such as a heart attack in the next few years is very low. ...Read more

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How precise is a nuclear cardiac stress test?

How precise is a nuclear cardiac stress test?

nuclear stress: All tests have sensitivity and specificity and each lab has its own data. In the best labs these values for this test are >85% sens/spec., there are many technical factors. We choose tests by the information needed and the best test o get us what we need to know. ...Read more

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What is the diagnostic test for ureterolithiasis?

What is the diagnostic test for ureterolithiasis?

Ureterolithiasis: The best test to identify a kidney or ureteral stone is a CT stone protocol. No oral or IV contrast is used ...Read more

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Is the thyroid uptake test definitive in identifying grave's disease?

Suggestive: The uptake scan would show a certain pattern that is suggestive of graves disease. In addition, certain antibodies are found in your blood with graves disease. The antibody is called tsi (thyroid stimulating immunoglobulin). ...Read more

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What is the diagnostic test for amyloidosis?

What is the diagnostic test for amyloidosis?

Specific test?: First: clinical. Second:confirmation and detection of monoclonal gammopathy on serum protein electrophoresis, with microscopic examination of abdominal fat, rectal or gingival biopsies looking for amyloid protein ...Read more

Dr. Gerald Mandell
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