I guess each hospital has their own way of doing it. I found the first 12 hours after dose one of steroids was normal then I started getting ketones whilst my blood was less than 8 and so I went onto the sliding scale. I honestly didn't pay much attention to how much insulin they were giving me via drip so can't say how much was needed. But remember, insulin is a drug that needs to match your blood,the value of a dose is neither good nor bad,it's whether your scores remain good. Whether you use double,triple or any multiple of your typical amount doesn't matter.