Osmolarity

Description:

Osmolarity is defined as mmol solute/L solution, whereas osmolality is mmol solute/kg solvent (equivalent to 1 L for plasma and urine).

Osmometers are calibrated to read osmolality.

See Osmolality, Osmolality urine.

Reference:

Rose BD and Post TW. Clinical physiology of acid base and electrolyte disorders. 2001