Found this on the NHS website, is it true? ''Thyroid testing: Discussion It is

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Found this on the NHS website, is it true?

''Thyroid testing: Discussion

It is recognised that there is a growing distrust of thyroid function

tests among a minority of patients because they have test results

within the reference interval but have symptoms suggestive of

hypothyroidism. It is accepted that the guidelines quote decision

limits for TSH with the aim of simplifying, standardising and

optimising clinical decisions. It is recognised that there can be

variability in bias between the various commercial assays available.

Nevertheless, large population surveys from the US using rigorous

criteria for selecting a ``healthy'' reference population have failed

to provide any evidence for narrowing the reference interval of TSH.''

http://www.bettertesting.org.uk/?id=-308899

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