water diuresis


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wa·ter di·u·re·sis

excretion of urine after drinking water; results from reduced secretion of the antidiuretic hormone of the neurohypophysis in response to the lowered osmotic pressure of the blood.

wa·ter di·u·re·sis

(wawtĕr dīyūr-ēsis)
Excretion of urine after drinking water; results from reduced secretion of antidiuretic hormone of neurohypophysis in response to the lowered osmotic blood pressure.
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However, it is difficult to determine the influence of cortisone on UFC excretion in quantitative terms because interference by cortisone depends not only on its cross-reactivity with the binding protein but also on the diuresis-induced increase in cortisone excretion, which changes markedly with time of day: water diuresis in the morning (zenith of adrenal activity) presumably has a more pronounced effect on cortisone excretion than water diuresis in the evening (nadir of adrenal activity).
Urinary free cortisol is not affected by short-term water diuresis [Letter].
As expected, the urine volume was significantly greater during water diuresis (P <0.002, 60-180 min after water ingestion) than during the control period (0-180 min, no water ingested).