Labels:monitor | reckoner | sky OCR: WATER DEPRIVATION TEST response to exogenous vasopressin after period of I dehydration (see Fig 5.16) administer desmopressin 4g intramuscularty patient allowed to eat and drink. but avoid excessive Pinu intake sample urne at 3 5 and 16 hours after desmopressin to measure volume and osmolality draw venaus blood at 5 and 16 hours after desmopressin to measure osmolality patient to be supervised throughout test nuid urine venous