WATER DEPRIVATION TEST AND DESMOPRESSIN TEST IN …

TSH will be measured on all samples as a first line test and subsequent actions determined by the result. In the absence of non-thyroidal illness and interfering medications TSH is a reliable screening tool, with a sensitivity 89-95% and specificity 90-96%. It has a high predictive value in ruling out thyroid disease and is cost effective. ................
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