CABG patch kid, BSN, RN 546 Posts Specializes in Telemetry, CCU. Feb 17, 2009 To me, the Novolog is ordered very unusually. Novolog is very fast acting (ie starts working within 20 min, out of the system within 4 hours), so I all ways have seen Novolog ordered as a sliding scale. Having only one dose regardless of blood sugar is very strange.There is a doc I work with that often orders "x"units of Novolog before each meal, so a set number regardless of blood sugar isn't odd unless the patient isn't going to eat right afterwards. You would still check the sugar before giving it and hold the insulin if its too low, but I guess what I'm saying is that Novolog isn't just for sliding scale.