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.
Your pet is regulated when its blood glucose remains within an acceptable range all day, every day. Acceptable levels vary somewhat between cats, dogs, and vets, but is roughly from 5 to 12.5 mmol/L (90 to 250 mg/mL in the USA) for cats, and between 5 and 10 mmol/L (90 to 180 mg/dL) for dogs.