Endocrine Abstracts

Back ground: Our Cortisol assay was changed from older generation assay to new second-generation Roche cortisol assay for the Short synacthen tests. There is ~ 20–25% difference in cortisol values between these assays. There are debates about the cut off values for normal response (cortisol of 420 or 440 nmols), compared to 550 nmols/l with older assay. And to assess the use of 30 and 60 min cortisol response.Methods: Short synacthen tests data were...