Diabetic Ketoacidosis and Kidney Disease Management

Trace Ketones: Interpretation and Management

The American Diabetes Association recommends that trace ketones in urine indicate mild ketosis that may progress to diabetic ketoacidosis (DKA), particularly in ketosis-prone individuals, such as those with type 1 diabetes, a history of DKA, or SGLT2 inhibitor users 1
The presence of urine ketones is highly sensitive for DKA with high negative predictive value, making it useful for ruling out DKA in patients with diabetes 1
Ketone bodies are normally present below detection limits; any elevation suggests impending or established DKA when combined with hyperglycemia and symptoms 1
Standard urine dipsticks using nitroprusside only measure acetoacetate and acetone, not β-hydroxybutyrate, which is the predominant and strongest acid in DKA, according to the American Association of Clinical Endocrinologists 2
Blood β-hydroxybutyrate measurement is the preferred method for both diagnosis and monitoring of DKA, as recommended by the American Diabetes Association 2

The National Kidney Foundation recommends that trace protein, or microalbuminuria, is the earliest clinical marker of diabetic kidney disease and predicts progression to kidney failure, cardiovascular disease, and mortality in patients with diabetes 7
Microalbuminuria predicts 15% progression to kidney failure at 3.8 years in type 1 diabetes, with cardiovascular event rates of 8% versus 6% in normoalbuminuric patients, according to the American Journal of Kidney Diseases 7
Macroalbuminuria carries 23% progression to kidney failure and 42% cardiovascular event or death rates, emphasizing the need for aggressive blood pressure control and RAAS blockade to slow progression, as recommended by the National Kidney Foundation 7
The American Diabetes Association recommends annual screening for microalbuminuria using albumin-to-creatinine ratio (ACR) on first-voided morning urine in patients with type 1 diabetes, starting 5 years after diagnosis, and at diagnosis and annually thereafter in patients with type 2 diabetes 7