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osmol, osmolal

See osmole.


, osmole (oz'mol?, os')
The standard unit of osmotic pressure based on a one molal concentration of an ion in a solution. osmolal (oz-mo'lal), adjective

idiogenic osmole



adjectival form of mole, a one osmolal solution contains 1 mole of solute in 1 L of water.

osmolal gap
difference between the measured plasma osmolality and the osmolality calculated from the plasma concentration of normally measured solutes.
References in periodicals archive ?
Review of literature has suggested that the osmolal gap can be increased in patients with ethanol-induced acidosis without the presence of other alcohols, [10] presumably owing to the presence of acetone, which is produced by ethanol metabolism and by starvation .
Contrast was subdivided on the basis of ionicity into ionic and nonionic; osmolarity into high osmolal contrast media (HOCM) and low osmolal contrast media (LOCM); structure into monomer and dimer.
2) In addition to screening tests for toxins, calculation of the osmolal gap (OG) as osmolality - (2[Na+] + [urea] + [glucose]), may be helpful as an indicator of intoxication.
Anion and osmolal gaps in the diagnosis of methanol poisoning: clinical study in 28 patients.
3 (B) Serum bicarbonate < 20 meq/L (C) Osmolal gap > 10 mOsm/L (D) Urinary oxalate crystals present (in the case of EG poisoning) Data are from the American Academy of Clinical Toxicology Ad Hoc Committee on the Treatment Guidelines for Ethylene Glycol and Methanol Poisoning.
Osmolal means roughly 'osmotically effective moles of solute per kg of water'.
The serum osmolal gap (75 mOsm/kg) was calculated as follows: Osmolal gap = freezing-point depression osmometer value --(2 X [[Na.
AKA can also be associated with other laboratory abnormalities, such as increased serum lactate and an osmolal gap, as well as reduced electrolyte concentrations.
Severe acute VPA toxicity may be characterized by several biochemical abnormalities, including hyperammonemia, hypernatremia, hypocalcemia, an increased osmolal and anion gap, respiratory alkalosis, metabolic acidosis, and increased transaminase activity.