Corrected entry: When Drs. Jenson and Webb are looking at vampire blood on their monitor, the molecules are moving around in a liquid state. This would mean the doctors put a drop of the blood directly under the microscope. This method is antiquated and is not the routine procedure that has been in use for well over a hundred years. When blood is prepared for microscopic examination, it is smeared, dried, and stained on slides.
Jon Nicholas
8th Oct 2003
Correction: This is vampire blood, however. As revealed far earlier in the movie (when Karen was saying that the cells were bi-convex, which was "impossible"), vampire blood is drastically different from human. Who knows how many differences the two have?
redbaron2000