Urine Albumin-to-Creatinine Ratio

UACR measures the amount of albumin (a protein) leaking into the urine, standardized to urine creatinine. Healthy kidneys keep albumin in the blood, so albumin in the urine (albuminuria) is a sign of kidney damage.

UACR detects kidney damage earlier than eGFR — often while eGFR is still normal — and it independently predicts both kidney progression and cardiovascular events. Together with eGFR it defines and stages chronic kidney disease.

1. 1

   FoundationCardiovascular HealthThe best place to understand what actually prevents heart disease.
2. 2

   ConditionChronic Kidney DiseaseProgressive loss of kidney function
3. 3

   Signal RecordSGLT2 InhibitorsSodium-glucose cotransporter-2 inhibitors ('gliflozins')
4. 4

   Body SystemCardiovascularHeart function, blood pressure, and circulatory health.
5. 5

   BiomarkerCreatinine & eGFRThe core kidney-function markers

1. Measure it
2. Understand your result
3. See what raises and lowers it
4. Apply evidence-based interventions
5. Recheck on your review cadence

An orientation to how this topic is typically approached — not medical advice.

Rising UACR signals kidney damage and elevated cardiovascular risk, even with a normal eGFR. Persistent albuminuria drives treatment — it is the trigger for ACE inhibitors/ARBs and supports SGLT2-inhibitor use.

• Spot urine albumin-to-creatinine ratio (first-morning preferred)
• Confirm persistence on repeat testing
• Paired with eGFR to stage CKD

Albuminuria is a validated, guideline-endorsed marker for staging CKD and predicting kidney and cardiovascular outcomes; reducing it (via RAAS blockade and SGLT2 inhibitors) tracks with better outcomes.

• KDIGO Clinical Practice Guideline for CKD Evaluation and Management
• ADA Standards of Care (kidney assessment)

Sources are named authoritative guidelines and scientific bodies. Biomarker pages present established clinical context; calibrated evidence verdicts on specific interventions live in the linked Signal Records.