INTERPRETATION OF DIAGNOSTIC INFORMATION REGARDING FOOD ANIMALS

Ensuring an accurate diagnosis from an off-site diagnostic laboratory is an integral part of herd health. There is, however, considerable va riation in test methods used and in the type and interpretation of dat a reported by different laboratories. Such variations can lead to conf usion and can complicate situations in which the amount of, source of, and perhaps liability for animal loss are being evaluated. Effective and timely communication among all parties involved in diagnostic effo rts is the most essential factor in resolving problems. Practitioners vary considerably in the extent to which they believe the laboratory s hould proceed with diagnostics, and this variation can be resolved onl y by communication. This column attempts to identify the sources of va riation as well as address common approaches to avoiding and managing diagnostic problems.