How Much Blood Do You Lose?

When i started, literally, it was just doctor, how much blood dit you lose? An said about 400. And then they went to ok, e're going to trap everything that comes out in his bag and try to gess how much is blood versus amny ouid flowed. Then they start doing this new system they have where it's like a, almost like a one of those scanners on your eye pomor anhat, looks at it,. It measures the volume and the density, and it comes up with ha number. And i don't know, i mean, it's all of it's inaccurate, and it's hard to really know for sure. But again