Quick question Answer for Quick Question of the day 07/13/2015 July 14, 2015 Troy Leave a comment Calculate the anion gap. Cl – 110, Na – 135, and Hco3 – 16. a. 6 b. 9 c. 12 d. 15 e. 18 Answer: B (135 – (110+16) = 9 ([Na+] − ([Cl–] + [HCO3−]) = range varies, however normal is generally considered less than 12.)