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  • osmolality — The concentration of a solution expressed in osmoles of solute particles per kilogram of soluent. calculated serum o. the calculation of serum o. from serum sodium, glucose, and urea nitrogen values by a variety of formulae, the most common of… …   Medical dictionary

  • osmolality — The concentration of particles dissolved in a fluid. The osmolality of serum can help diagnose several medical conditions such as dehydration, diabetes, and shock …   English dictionary of cancer terms

  • osmolality — noun (plural ties) Etymology: osmol + 1 al + ity Date: circa 1944 the concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent • osmolal adjective …   New Collegiate Dictionary

  • osmolality — noun The molality of an ideal solution that would exert the same osmotic pressure as the solution being considered …   Wiktionary

  • osmolality — [ˌɒzmə(ʊ) lalɪti] noun Chemistry the concentration of a solution expressed as the total number of solute particles per kilogram. Origin 1950s: blend of osmotic (see osmosis) and molal, + ity …   English new terms dictionary

  • osmolality — os·mo·lal·ity …   English syllables

  • osmolality — n. the concentration of body fluids (e.g. plasma, urine) measured in terms of the amount of dissolved substances per unit mass of water. It is usually given in units of mol kg 1 …   The new mediacal dictionary

  • Plasma osmolality — is a measure of the concentration of substances such as sodium, chloride, potassium, urea, glucose, and other ions in human blood. It is calculated as the osmoles of solute per kilogram of solvent. Normal osmolality in plasma is about 280 303… …   Wikipedia

  • Urine osmolality — is a measure of urine concentration, in which large values indicate concentrated urine and small values indicate diluted urine. In healthy individuals with restricted fluid intake, urine osmolality should be greater than 800mOsm/Kg, while a 24… …   Wikipedia

  • hypo-osmolality — hy·po os·mo·lal·i·ty (hi″po oz″mo lalґĭ te) a decrease in the osmolality of the body fluids. Body fluid volume increases and solute volumes usually decrease; the predominant symptoms are those of hyponatremia such as cerebral… …   Medical dictionary

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