Thanks for the information. With just a high white blood cell (WBC) count that is abnormal on blood work, it can be very difficult to pinpoint the cause. An infection is not the only thing that can cause a high white blood cell count, and not all infections cause high white blood cell counts; so it is not altogether completely reliable for looking for an infection. In general, infections that don't really get into the blood stream don't cause high WBC counts. I have seen some very dirty, infected mouths; and very few of them have high WBC counts. If they do, then I get concerned about infection spreading to the heart, liver or kidneys. Any issue that creates enough inflammation, including a lot of immune mediated diseases (body's immune system attacks
its own cells) can create high white blood cell counts. Even some cancers can cause high WBC counts. A lot depends on how high the WBC count is. Mild elevations may not be anything important and can be normal for that particular patient. Moderately elevated counts could be infection or inflammation. With very high counts, I tend to worry more about severe infections, immune mediated diseases and cancer. At this point, if teeth are suspected, make sure she is on either clindamycin
(best choice) or Clavamox for antibiotics. I might not hurt to add Baytril
or Zeniquin as well. I would definitely get chest x-rays and an abdominal u/s (can do abdominal x-rays, but you may not see everything you want to see). A heart ultrasound will let you know if there is infection on the heart valves, possibly from the teeth. An ANA or Coomb's test may diagnose an immune mediated issue (negative results don't rule them out). Joint taps, bone marrow evaluation, blood cultures, tick disease titers and fecal exams may be needed if the WBC count is persistently high and didn't respond to proper antibiotics and a teeth cleaning. Please let me know if you have any other questions. Hope this helps.