part of part of has part has part has_part characteristic of has modifier vasopressin abnormal urine hormone level abnormal urine antidiuretic hormone level abnormal urine AVP level any change in the urine amount of the polypeptide hormone secreted by the posterior lobe of the pituitary gland (neurohypophysis) that increases mean arterial pressure by promoting vasoconstriction and reduces excretion of urine by increasing the reabsorption of water by the kidney tubules abnormal urine vasopressin level MPheno.ontology MP:0011542 abnormal urine arginine vasopressin level csmith 2011-12-16T04:03:29Z abnormal urine argipressin level abnormal urine ADH level amount abnormal urine