The use of laboratory tests has become commonplace and a necessity in
progressive clinical veterinary practice. The information gained from
selecting appropriate laboratory tests is invaluable in making an accu
rate diagnosis, establishing a prognosis, and monitoring response to t
herapy. Acquisition of reliable laboratory results depends on a thorou
gh understanding of those factors that may affect laboratory data othe
r than the disease process being investigated. The proper use of labor
atory tests gives the clinician an added dimension to clinical practic
e that is both informative and intellectually rewarding.