osmolality


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osmolality

(ˌɒzməʊˈlælətɪ)
n
(Biochemistry) biochem the measure of osmole concentration in a solvent
References in periodicals archive ?
Contract notice: reagents and additional measures for the determination of osmolality
The patient's 24-hour urine osmolality was 79 mOsm/kg, and it increased to 98 mOsm/kg; he lost 5.2% of his weight after 7-hour water deprivation test.
Blood gas, electrolyte, and select biochemical and hematologic values were analyzed by using a point-of-care analyzer, and complete blood cell counts and osmolality were determined.
Increases in osmolality stimulate thirst and result in increased fluid intake.
It has been suggested that the AVP hypersecretion plays a critical role in the BE formation, leading to vasospasm, water retention, dilutional hyponatremia, and low plasma osmolality [7].
Modified diets, including the use of thickening agents, should be monitored with respect to viscosity and osmolality when provided to infants with dysphagia.
After being admitted, the blood test showed serum [Na.sup.+]113 mmol/L, serum osmolality 244 mmol/L, [K.sup.+] 3.8 mmol/L, urine [Na.sup.+] 57 mmol/L, urine osmolality >498 mmol/L.
Osmol uses a small 20 pL sample size and can measure the osmolality of body fluids--including whole blood, serum, plasma, urine, feces, sweat, and tissue homogenate.
Result Reference interval Sodium, mmol/L (ISE) 123 135-145 Total protein, g/dL 5.7 6.5-8.0 Triglycerides, mg/dL (a) 250 44-133 Cholesterol, mg/dL (a) 1807 120-230 Osmolality, mosm/kg 294 290-300 Calculated osmolality, mosm/kg (b) 262 290-300 Sodium, mmol/L (DSE) 138 135-145 (a) Conversion factors for SI units: triglycerides mg/dL x 0.011 = mmol/L; cholesterol mg/L x 0.026 = mmol/L.
Human and murine urine typically have a slightly acidic pH and the osmolality can vary [26, 27].
Corrected sodium was calculated to be 158 meq/L, anion gap 32, delta gap: 2, and serum osmolality 363 mOsm/kg.