How often should water-flow indicators be tested?

An elevated white blood cell level could indicate all of the following EXCEPT ________

a. infection b. viral infection c. leukocytosis d. leukemia

The main disadvantage of patient care algorithms is that they:

A) are revised or updated too frequently. B) are often overridden by medical control. C) only address classic patient presentations. D) discourage contact with direct medical control.