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 ...

The findings of this study provide contemporary autopsy reference ranges for infant organs, by age, during the first year of life. This data is based on a large number of cases (over 1,000 infant ...

Although clinicians understand the importance of reference ranges for the interpretation of laboratory results, they may not consider that a borderline result outside the analytically valid reference ...

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.

OBJECTIVES:To establish reference ranges for the more sensitive assays of thyrotropin and the best available assays of free thyroxine in premature infants after the first week of life. STUDY ...

The sex of an individual is typically assigned at birth based on the appearance of the external genitalia. Chromosomal testing can determine whether a person is biologically male (1 X chromosome and 1 ...

What makes a biomarker a biomarker? Testing for something doesn’t automatically make it a biomarker. A biomarker is the measurement or detection of a variable element of the human body. Imaging can ...

In discussing the importance of age-specific ranges, Oesterling et al 24 acknowledge the lack of current information regarding age-specific TPSA levels for black, Asian, and Hispanic men. A study of ...

Please provide your email address to receive an email when new articles are posted on . Some people believe that the upper limit should be lowered to 2.5 mIU/L. They believe that if you take groups of ...