Leah
This is also true for urine specific gravity. It frustrates me to no end that some vets memorize numbers without any context. An animal that is fed kibble will have a higher urine specific gravity. A raw fed animal will have a lower urine specific gravity.
And the range for what is healthy that vets memorize must be based on kibble. Because that number is way to high and is not always reflective of perfectly functioning kidneys.