Osmolal Gap (Stool)

Stool Na
mmol/L
Stool K
mmol/L
Serum Osmolality
mosm/kg
Osmolal Gap
mosm/kg
Formula

OG = Osm - 2*(Na+K)

Info

References:
Shiau YF. Ann Intern Med. 1985 Jun;102(6):773-5. -> PubMed
Duncan A. J Lab Clin Med. 1992 Apr;119(4):359-63. -> PubMed