Lincoln's blood and his death certificate

[Thomas Kearney]

I hate to ask these questions, but I cannot find information anywhere else.

Is it true that this document is the only thing that resembles a death certificate (document attached)?
Is there really no official death certificate?

And also, what happened to Lincoln's blood?
I found two sources: One is a newspaper article that claims the blood, after the embalming, was preserved. The other - I think it was discussed here - was that a former curator of the Smithsonian claimed that it was in the museum collection.

Cool, maybe I could see a copy at The Lincoln Tribute.