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Comparison of low dose short synacthen test [1 microgram] with standard dose short synacthen test [250 microgram] in patients of adrenal insufficiency
PAFMJ-Pakistan Armed Forces Medical Journal. 2011; 61 (1): 53-57
in English | IMEMR | ID: emr-110093
ABSTRACT
To determine the diagnostic accuracy of low dose 1 microg short synacthen test taking standard dose 250 microg short synacthen test as gold standard. A descriptive study. Department of Chemical Pathology and Endocrinology Armed Forces Institute of Pathology Rawalpindi from Jan 2006 to Jan 2007. Thirty patients with clinical suspicion of adrenal insufficiency and equal number of age matched healthy males and females as controls were included in the study. Relevant clinical history and physical examination was recorded on designated proforma. Short synacthen test was performed between 0800 - 1000 h by using ACTH doses of 1 microg and 250 microg with interval of 3 days in all patients and controls. Three blood samples were obtained for cortisol [basal, 30 min and 60 min after l/M ACTH injection]. Using 250 microg short synacthen test as a standard test, the 1 microg short synacthen test had sensitivity of 100%, specificity of 72%, positive predictive value of 71% and negative predictive value of 100% and 83% accuracy. The low dose 1 microg short synacthen test is as sensitive as standard dose 250 microg short synacthen test but less specific in the diagnosis of adrenal insufficiency
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Index: IMEMR (Eastern Mediterranean) Main subject: Corticotropin-Releasing Hormone / Cosyntropin / Sensitivity and Specificity / Adrenal Insufficiency Limits: Female / Humans / Male Language: English Journal: Pak. Armed Forces Med. J. Year: 2011

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Index: IMEMR (Eastern Mediterranean) Main subject: Corticotropin-Releasing Hormone / Cosyntropin / Sensitivity and Specificity / Adrenal Insufficiency Limits: Female / Humans / Male Language: English Journal: Pak. Armed Forces Med. J. Year: 2011