The old standard for morphine is give however much stops the pain. They should have pushed up to the max they're allowed, if you were still in pain. I was in an accident, and the docs gave me as much morphine and dulaudid as it took and explained that opiod reception varies greatly when in pain. The amount of dilaudid that would make you loopy now may do nothing while you're hurt, and the amount to make you comfortable while hurt would easily kill you now. Effectively the LD50 varies with pain levels.