When it comes to emergency supplies, your best-case scenario is this: All the supplies outdate. It's counter-intuitive to your economical mindset. But since you hope these medications and supplies go to waste, it might also seem like a good idea to have as many as possible, in case a patient does crash. So, every year, you throw out vials of dantrolene and bottles of nitroglycerine. Which do you need? Where can you trim waste? Here's what you need to know.