Insulin
Type of insulin
A soluble insulin is normally used with the aim of permitting more rapid titration of circulating insulin levels (though there are no trial data comparing soluble against other types of insulin). If an intravenous bolus is followed by an intravenous infusion steady state insulin levels are reached very quickly. The half life of circulating insulin is five minutes; use of an intravenous infusion has the advantage over intermittent boluses of permitting a more rapid reduction in insulin level.