Three Samples of Blood Are Usually Collected Over a 24-48

Three samples of blood are usually collected over a 24-48 hour period from a patient with a suspected bloodstream infection

A) to see if the causative organism is changing.
B) to test for different types of organisms.
C) because some organisms are difficult to culture.
D) because the causative organisms may be intermittently shed into the bloodstream.
E) all of the above.