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Two thyroid measures unnecessary, study says. (TSH Alone is Adequate).
SAN DIEGO -- The chance that a patient with a normal TSH level will be found to have an abnormal free thyroxine level is 1%, according to a study that steps into the controversy over whether only one or both tests are needed to adequately evaluate a patient's thyroid function.
"The TSH alone is adequate to screen out patients with thyroid dysfunction, and limiting free T4 tests to just those with abnormal TSHs would result in considerable cost savings," the study's presenter, Dr. Anthony J. Viera, said at the annual meeting of the American Academy of Family Physicians.
In Dr, Viera's study, he reviewed the records of all thyroid function tests from his family medicine clinic at Naval Hospital Jacksonville (Fla.) from January 1995 to March 1997. There were 2,932 TSH tests and 2,861 T4 tests ordered during that time. Most of the time, the tests were ordered together (98%), and the T4 was never ordered alone.
When he excluded the single TSH tests and the duplicate tests, he was left with a sample of 1,392 paired tests for evaluation. Ninety-six percent of those tests were concordant, meaning that the patient was euthyroid, with normal values for both tests (1,187), hypothyroid, with an elevated TSH level and a depressed T4 level (112), or hyperthyroid, with a low TSH level and an elevated T4 level ...
- Monitor TSH level after radiotherapy to neck.(Endocrinology)(Brief Article)
- Magazine article from: Internal Medicine News Jancin, Bruce December 1, 2005 700+ words
DENVER -- Hypothyroidism occurs in up to half of patients within 5 years after radiotherapy for head and neck cancer in which the gland remains outside the primary field of radiation but is included in the low-neck field, said Anna A. Norris, M.D., at the annual meeting of the American Society for
- Treat the patient--not the blood tests!(Highly Effective Treatments for Pain...
- Magazine article from: Townsend Letter for Doctors and Patients Teitelbaum, Jacob January 1, 2006 700+ words
...rely on blood tests' normal ranges. Even for tests that have normal...a TSH thyroid test has dropped from...anyone who had a TSH level between 3 and...range for thyroid tests was dramatically...relied on a normal TSH level ranging from 0...for patients who test ...
- Treat the patient--not the blood tests!(Pain Free 1-2-3!)
- Magazine article from: Townsend Letter Teitelbaum, Jacob January 1, 2009 700+ words
...rely on blood tests' normal ranges. Even for test that have normal...anyone who had a TSH level between 3 and...pain), the TSH test, which is the...range for thyroid tests was dramatically...relied on a normal TSH level ranging from 0...for patients who test ...
- Interpretation of laboratory thyroid function tests for the primary care...
- Magazine article from: Southern Medical Journal Supit, Edwin J. Peiris, Alan N. May 1, 2002 700+ words
THYROID FUNCTION TESTS are frequently ordered...of thyroid function tests currently available...in Table 1. Serum TSH Level The American Thyroid...and TSH levels to test thyroid function. (1) Serum TSH level remains the single...
- CME post-test.
- Magazine article from: JAAPA-Journal of the American Academy of Physicians Assistants February 1, 2004 700+ words
...take this CME Post-test online at www.aapa...initial screening tests should be ordered...4] levels d. TSH level and radioactive iodine...initial laboratory tests are a. A platelet...you to take this test online. Go to www...click on "JAAPA Post Tests." How to use this...
- PULSECLINICAL: LAB TEST UPDATE - HYPOTHYROIDISM.(Case study)
- Newspaper article from: Pulse December 17, 2008 700+ words
...TSH but a normal T4. Other tests are normal. You repeat the test two months later and receive...the thyroid gland fails, the TSH level may increase above the normal...history should be reviewed and the test should be repeated on at least...
- Commonly asked questions & answers about screening tests.(ASK THE EXPERT)
- Newspaper article from: National Women's Health Report December 1, 2007 700+ words
...should ask your doctor to screen you now with a TSH test. This test measures a hormone that your pituitary gland releases...thyroid hormone. If you have hypothyroidism, your TSH level will be increased. In that case you will need supplemental...
- Ten Situations Where a Bone Density Test Is a Must.(Brief Article)
- Magazine article from: Family Practice News JANCIN, BRUCE November 15, 2000 700+ words
...skeletal health and the risk of bone loss, test their bone mineral density, and get them...situations where it's important to get a BMD test: * X-Ray Evidence of 'Thin Bones...increased skeletal risk as long as their TSH level is in the therapeutic range. But really...
- Consider lowering threshold for normal TSH: test liberally in early...
- Magazine article from: Family Practice News Bates, Betsy June 15, 2004 700+ words
...Mestman recommends ordering thyroid tests for pregnant patients with any of the...previous thyroid ablation should have thyroid tests performed as soon as they become pregnant...with a small goiter. The woman's last TSH level was 2.7 [micro] U/mL. She is on...
- USPSTF cool to subclinical thyroid dysfunction screen: insufficient...
- Magazine article from: Family Practice News Evans, Jeff April 1, 2004 700+ words
...specialty endocrine clinic, tests that measure the level...interpretation of a positive test result. False-positive screening test results may result in...patients. An abnormal TSH level sometimes reverts back...untreated women who had a low TSH level during screening, said...
Source: HighBeam Research, Two thyroid measures unnecessary, study says. (TSH Alone is Adequate).