What laboratory finding would be expected in a cat experiencing diabetic ketoacidosis?

In a cat experiencing diabetic ketoacidosis (DKA), the presence of ketones in urine is a key laboratory finding. DKA occurs due to insulin deficiency, leading to increased fat breakdown and the subsequent production of ketone bodies as an alternative energy source when glucose cannot be properly used. These ketones, which include acetoacetate, β-hydroxybutyrate, and acetone, are released into the bloodstream and eventually filtered out by the kidneys, resulting in their presence in urine.

The presence of ketones in urine serves as a critical marker for DKA, confirming the metabolic state that results from this condition. Monitoring for ketones in the urine allows for quicker identification and management of diabetic crises in cats, which can help prevent more severe complications associated with DKA.

The other options do relate to the metabolic changes that can occur in critical conditions, yet they do not specifically define the hallmark of diabetic ketoacidosis as distinctly as the presence of ketones in urine does.