I got a requisition for serum and urine osmolality. I’ve done some searching, but I still don’t understand what those mean. Help?
In: Biology
Osmolality is the overall concentration of dissolved stuff in a liquid. Say if you dissolved 1 gmol of salt (NaCl) in 1L of water, then it would have an osmolality of 2 osmole (abbreviated Osm) per L (or kg, because density of water is 1kg/L) of water. The 2 comes from each salt molecule having two ions (Na+, Cl-).
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