Good explanation, Amy.  The insulin of 80 (give or take) is an estimate for triggering an acute episode but there is smoldering damage going on with high insulins even if the horse does not show an acute episode.

The 4 hour wait after first  meal of the day is not needed if the horse had access to hay or pasture overnight.
--
Eleanor in PA

www.drkellon.com  2 for 1 course sale
EC Owner 2001