When polyuria does not stop: a case report on an unusual complication of hantavirus infection

BMC Infectious Diseases

Table 1 Water deprivation test

	Urine		Plasma			Vital signs
Hour	Volume [ml/h]	Osmolality [mosmol/kg]	Osmolality [mosmol/kg]	Sodium [mmol/l]	Copeptin [pmol/l]	Bodyweight [kg]	Blood Pressure [mmHg]
0	430	164	299	144	4.3	91.2	140/80
1	300	157	298	144		n/a	n/a
2	350	161	299	144		90.1	130/80
3	320	197	300	147		89.7	n/a
4	300	208	304	148		89.4	150/90
5	250	223	304	147		89.6	130/70
6	250	231	305	148		89.3	140/80
7	300	238	308	148	4.2	88.9	130/75
Administration of 4 μg desmopressin (Minirin®)
8		387
9		301

Low Copeptin levels and a > 50% increase of urine osmolality after administration of desmopressin confirmed the diagnosis of a complete diabetes insipidus centralis

ISSN: 1471-2334