Laboratory testing supports most clinical decision-making; however, the concept of a fixed “normal” value is theoretical. Studies have suggested that approximately 7 out of 10 clinical decisions rely ...

Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

You receive a phone call: the results from routine blood tests show a “low white cell count”. Your doctor explains that more investigations are necessary, perhaps a referral to the haematologists.

Please provide your email address to receive an email when new articles are posted on . Researchers created thyroid function reference ranges adjusted for age, sex and racial-ethnic background. Using ...

Applying a uniform reference range across all adults for serum levels of thyroid stimulating hormone and thyroid hormones makes establishing a diagnosis of thyroid dysfunction challenging and could ...

If you’ve ever had a doctor order a blood test for you, chances are that they ran a complete blood count, or CBC. One of the most common blood tests in the world, CBC tests are run billions of times ...

The overdiagnosis of subclinical hypothyroidism (SCH) in the elderly has driven researchers to establish age-specific thyroid stimulating hormone (TSH) intervals to precisely evaluate the prevalence ...