It does from the perspective of the blood giver. Many people are dreadfully afraid of needles to the point their unwillingness to do preventative tests. Also re

It does from the perspective of the blood giver. Many people are dreadfully afraid of needles to the point their unwillingness to do preventative tests. Also reduces the knowledge needed to administrate the test and possibly the eventual cost of executing the test. No phlebotomists needed to exhale.