What is ACR? Your Complete Guide
ACR measures albumin relative to creatinine in a urine sample. It standardizes the microalbumin result so that urine concentration doesn't affect the reading. It's the preferred screening test for kidney damage in diabetes and hypertension.
💡Simply Explained
ACR is like a quality control check on your kidney filters. It measures whether your kidneys are letting valuable protein slip through the filter into your urine. Think of it as checking if a coffee filter has tiny holes — the protein shouldn't be getting through.
📏Normal Range
Typical reference range. Your lab may use slightly different values.
⬆️What High ACR Means
Possible Causes
- Diabetic kidney disease (most common cause in India)
- Hypertensive nephropathy
- Glomerulonephritis
- Lupus nephritis
- Preeclampsia in pregnancy
Foods That Can Help
- Strict blood sugar control (HbA1c target <7%)
- Blood pressure control with ACE inhibitor or ARB
- Reduce dietary sodium and protein if very high
- Consult nephrologist if ACR >300 mg/g
- Monitor every 3-6 months
⬇️What Low ACR Means
Possible Causes
- Normal — kidneys are filtering properly
- Not clinically significant
Foods That Can Help
- No specific dietary changes needed — this is a normal result
- Continue preventive kidney-healthy eating habits
🏃Lifestyle Actions
If Your ACR Is High
- Optimize diabetes management immediately
- Start ACE inhibitor or ARB medication (consult doctor)
- Limit salt: avoid extra namak, papad, achaar
- Moderate protein intake if ACR is very high
- Exercise regularly — 30 minutes walking daily
If Your ACR Is Low
- Continue annual screening if diabetic or hypertensive
- Maintain a healthy lifestyle
🩺When to See a Doctor
High ACR
ACR above 300 mg/g needs nephrologist consultation within 1-2 weeks. ACR 30-300 with poor sugar or BP control should be addressed within 2-4 weeks with medication optimization.
Low ACR
Normal ACR needs no urgent action. Continue annual testing if at risk.
🎯Did You Know?
The albumin-creatinine ratio was developed because a single urine sample's protein concentration depends on how much water you drank. By comparing albumin to creatinine, doctors get a reliable answer from just one sample — no need to collect urine for 24 hours!
❓Frequently Asked Questions
What is ACR?
ACR is like a quality control check on your kidney filters. It measures whether your kidneys are letting valuable protein slip through the filter into your urine. Think of it as checking if a coffee filter has tiny holes — the protein shouldn't be getting through.
What is the normal range for ACR?
The typical normal range for ACR is 0–30 mg/g.
What causes high ACR?
Diabetic kidney disease (most common cause in India). Hypertensive nephropathy. Glomerulonephritis.
What causes low ACR?
Normal — kidneys are filtering properly. Not clinically significant.
How can I check my ACR levels?
You can check your ACR levels with a routine blood test. Upload your lab report to ScanHealth for an instant, plain-language explanation.
Check Your ACR Results Instantly
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Upload Your ReportThis guide is for informational purposes only and does not constitute medical advice. Reference ranges may vary by lab. Always consult a qualified healthcare provider for diagnosis and treatment.