while the opposite of the question, i have seen insulin giving to successfully lower high potassium very quickly:
15 units of regular insulin with 50 ml d50 to keep from lowering the blood sugar too much.
see vanden hoek, tl; morrison, lj, shuster, m, donnino, m, sinz, e, lavonas, ej, jeejeebhoy, fm, gabrielli, a (2010-11-02). "part 12: cardiac arrest in special situations: 2010 american heart association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care.". circulation 122
(18 suppl 3): s829-61. [color=#0645ad]doi
alh/critical care rn