So, last week I injected and pulled some blood without realizing. Instead of properly disposing of the needle, it got mix with my needles to draw for my next injection. I pulled 1 ML AND then realized I had the blood droplets from 4 days ago. So dumb question ( I say dumb because the most safe way to go is just to discard and redraw), can I use this ML of test or should I just throw it away and draw a new dose?