Microalbuminuria
Definition
The presence of small amounts of albumin protein in the urine (30 to 300 mg/day), serving as the earliest detectable sign of diabetic kidney damage (diabetic nephropathy). Healthy kidneys filter albumin back into the blood, but high blood glucose damages the glomerular filtration barrier over time, allowing albumin to leak into urine. Screening for microalbuminuria is recommended annually for all diabetes patients, and CGM-guided glucose control with time in range above 70% significantly reduces the risk of progression to overt nephropathy.
Why “Microalbuminuria” Matters for Glucose Monitoring
Understanding microalbuminuria is essential for anyone using or evaluating a continuous glucose monitor. This concept directly affects how CGM devices are designed, how glucose data is interpreted, and how clinical decisions about blood sugar management are made. Medical terms related to glucose physiology help patients and clinicians communicate effectively about blood sugar patterns, treatment goals, and the clinical significance of CGM data.
This term applies broadly across all continuous glucose monitors and is foundational knowledge for interpreting CGM data, whether you are managing diabetes or using a sensor for metabolic wellness.
Related Terms
Abnormally high blood glucose, generally defined as levels above 180 mg/dL after meals or above 130 mg/dL fasting.
Hemoglobin A1C is a blood test that measures the percentage of hemoglobin proteins coated with sugar, reflecting average blood glucose levels over the previous 2 to 3 months.
The percentage of time a person's glucose level remains within a defined target range, typically 70 to 180 mg/dL for most people with diabetes.