pegasus10 Posted November 18, 2018 Share Posted November 18, 2018 Hello, the following equation is the short formula to calculate plasma osmolality (I found it on my physiology book as well as on Wikipedia): Calculated osmolality = 2 [Na] + [Glucose] + [Urea] My question is: why is the concentration of Na+ (sodium ions) multiplied by 2? Thanks in advance! Link to comment Share on other sites More sharing options...
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