Labels:text | screenshot | black and white | black | document | font OCR: the The water deprivation test has long bee the causes 'cornerstone' for differentiating betweer Dashe of polyuria. The protocol for a modified sment of dehydration test, combined with an asse own in response to exogenous vasopressin, is sl r severe Figs 5.16 & 5.17. Patients with moderate nguished cranial diabetes insipidus are clearly dist ently from others by the observation of consi together hypotonic urine during fluid restrictior istration of with concentrated urine after the admir following exogenous vasopressin. Hypotonic urin exogenous vasopressin strongly suggest nephrogenic diabetes insipidus.