You have had a schedule change at work, and need to leave your child with your friend. A few hours into your shift, you get a text that the child is in the ER $($because of course it is$).$ Your friend tells you that she has had rodent problem, and had left some rat poison out, and your child ate it $($yum$!).$ The doctor tells you that the child will be fine, that it was caught in time. They gave it a massive dose of vitamine K$.$ Explain what the poison did specifically, and why they gave the child vitamin K in such a large dose.