High Hemoglobin And Hematocrit Dog My Hemoglobin, Hematocrit And RBC Are Slightly High, What Does This Mean?

My Hemoglobin, Hematocrit and RBC are slightly high, what does this mean? - high hemoglobin and hematocrit dog

I 173 g / l, hemoglobin, hematocrit, RBC 0.51 and 5.95.
RBC, RDW, white blood cells, platelets, MPV are normal, but my neutrophils are my monocytes are 7.85 and 87 In the 33 years old, male and a regular drinker, it is fair, or dehydration may be something serious? Obviously, only slightly above normal.
Thanks