Is a PTH level of 40 pg/mL normal? The answer depends on the patient's serum calcium level and the clinical context.

Diabetes mellitus (DM) is an endocrine disorder characterized by abnormalities in glucose metabolism related to insulin deficiency, reduced insulin action, or a combination of these factors.

Vitamin D is directly related to calcium and phosphorus metabolism and plays a role in mechanisms essential for the body’s homeostasis. In dogs and cats, however, there is a key difference: the skin’s ability to synthesize vitamin D is limited, making the diet the primary source of this nutrient.