osmotic diuresis

diuresis /di·ure·sis/ (di″u-re´sis) increased excretion of urine.

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osmotic diuresis  that resulting from the presence of nonabsorbable or poorly absorbable, osmotically active substances in the renal tubules.

pressure diuresis  increased urinary excretion of water when arterial pressure increases, a compensatory mechanism to maintain blood pressure within the normal range.

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osmotic diuresis,

diuresis resulting from the presence of certain nonabsorbable substances in tubules of the kidney, such as mannitol, urea, or glucose.

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diuresis

increased excretion of the urine.

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cold diuresis

occurs in hypothermia as a result of peripheral vasoconstriction, hyperglycemia and decreased renal tubular absorption.

osmotic diuresis

due to increased concentration of solutes which are not reabsorbed in the proximal tubules and which, by osmotic pressure, cause water to be retained. See also osmotic diuretic.

postobstruction diuresis

due to the diuretic effect of urea and electrolytes retained during the period of obstruction.

water diuresis

ingestion and excretion of an excess of water, without a corresponding amount of sodium; involves expansion of plasma volume, increased left atrial pressure and inhibition of ADH. See also obligatory water diuresis.