I think her DH was on this very forum quite a few months ago before the news broke out.
I remember reading her story on here as well ... her DH posted it.

It is very sad. My heart goes out to this family.

It's unfortunate that they have to wait for mistakes like this before the risks are assessed. To me, it seems fairly logical and practical that fluids would need to be marked some way so you can tell them apart. Especially when injecting something into a person's spinal spaces.