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  2. Plasma osmolality - Wikipedia

    en.wikipedia.org/wiki/Plasma_Osmolality

    Measured osmolality is abbreviated "MO", calculated osmolarity is abbreviated "CO", and the osmolality gap is abbreviated "OG". [ 9 ] Clinically, the osmolar gap is used to detect the presence of an osmotically active particle that is not normally found in plasma, usually a toxic alcohol such as ethanol, methanol or isopropyl alcohol.

  3. Urine osmolality - Wikipedia

    en.wikipedia.org/wiki/Urine_osmolality

    Urine osmolality is a measure of urine concentration, [1] in which large values indicate concentrated urine and small values indicate diluted urine. Consumption of water (including water contained in food) affects the osmolality of urine.

  4. Osmotic concentration - Wikipedia

    en.wikipedia.org/wiki/Osmotic_concentration

    According to IUPAC, osmolality is the quotient of the negative natural logarithm of the rational activity of water and the molar mass of water, whereas osmolarity is the product of the osmolality and the mass density of water (also known as osmotic concentration).

  5. As a Nutrition Expert, Here's What I Really Think About the ...

    www.aol.com/nutrition-expert-heres-really-think...

    Osmolality, which refers to the concentration of particles in a fluid, affects how well a beverage hydrates explains Braddock. "Research suggests that beverages with higher osmolality than water, ...

  6. Freezing point depression osmometer - Wikipedia

    en.wikipedia.org/wiki/Freezing_point_depression...

    Osmometry is widely used in pharmaceuticals, quality control laboratories, and clinical chemistry to measure the osmolality in aqueous solutions accurately. It is commonly used in medical clinics to assist with various pharmaceutical practices, [10] including the development of lens care solutions and eye drops.

  7. Osmol gap - Wikipedia

    en.wikipedia.org/wiki/Osmol_gap

    The calculated osmolality is then subtracted from the measured osmolality to provide the osmol gap, or the difference between these two values. If this gap falls within an acceptable range,(<10) then it is assumed that sodium, glucose, BUN are indeed the major dissolved ions and molecules in the serum.

  8. Stool osmotic gap - Wikipedia

    en.wikipedia.org/wiki/Stool_osmotic_gap

    [2] 290 mOsm/kg is the presumed stool osmolality, and the measured concentration of sodium and potassium cations is doubled to account for the corresponding anions which must be present. [citation needed] A normal gap is between 50 and 100 mOsm/kg, [3] corresponding to the concentration of other solutes such as magnesium salts and sugars ...

  9. Free water clearance - Wikipedia

    en.wikipedia.org/wiki/Free_water_clearance

    At its simplest, the kidney produces urine composed of solute and pure (solute-free) water. How rapidly the kidney clears the blood plasma of a substance (be it water or solute) is the renal clearance, which is related to the rate of urine production.