| There is usually a range given for any test [for example--200-800 normal range. Average normal--500. Note--I completely made up these figures.] It helps, in addition to knowing the normal midpoint, to know the range of normal values you can expect when measuring a typical population. Different labs can also have somewhat different normals based on their individual techniques and the particular instruments used in their testing. It is possible Sydney's reading could be within the normal range, just on the high side, and that that is why the vet seems not too worried.
I'm basing this on years as medical technologist, but on PEOPLE testing. The theory still fits, but I don't know values and their significance for dogs. Got to go to others for that. |