However, in most instances, a difference of a few days is unlikely to have a negative effect on immune response. With the exception of rabies vaccine, ACIP allows a grace period of 4 days (i.e., vaccine doses administered up to 4 days before the recommended minimum interval or age can be counted as valid).
Blood Glucose in Dogs. Healthy dogs have normal blood glucose levels, which tend to range from 75 to 120 milligrams per deciliter of blood. Dogs that have levels of 80 milligrams per deciliter or lower are likely to develop hypoglycemia.
On the other end of the spectrum, dogs that have blood sugar levels of 180 milligrams per deciliter on a consistent basis tend to need diabetic treatment as well. Maintaining normal blood glucose levels in dogs with either high or low blood sugar can be difficult, but is essential for extending the life of the pet. Most owners will first identify symptoms of low or high blood sugar in their dogs before they're able to actually test the dog's blood.