Albumin and Creatinine with Albumin-Creatinine Ratio (ACR), Urine
One of the earliest signs of kidney damage, often years before kidney function declines.
Consider this test if:
- Living with diabetes or high blood pressure and screening for early kidney involvement
- Family history of kidney disease and you want a baseline
- Tracking whether blood pressure or glucose control is protecting your kidneys
- Confirming an abnormal dipstick urinalysis result
- Monitoring kidney impact of a medication or an existing CKD diagnosis
- HSA/FSA eligible
- Typical results in 1 day · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
No fasting required. An early-morning sample is preferred for the most reliable result. Avoid collecting during menstruation, an active urinary tract infection, or right after intense exercise, since blood, infection, and exertion can transiently raise albumin. A positive result is usually repeated on a second early-morning sample to confirm.
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What this test is for
The urine albumin-to-creatinine ratio detects small amounts of albumin leaking into the urine, a sensitive early marker of damage to the kidney's filtering units. It is the standard screening test for chronic kidney disease and is especially important in diabetes and high blood pressure, where albumin in the urine commonly appears before glomerular filtration rate drops. An elevated ratio (30 mg/g or higher) that persists is used to diagnose and stage CKD, and it independently predicts cardiovascular events, so catching it early lets you tighten blood pressure and glucose control before damage progresses. A single high result is not enough: menstrual blood, urinary tract infection, hard exercise, and standing upright can all transiently raise albumin, so a positive should be confirmed on a repeat early-morning sample.
This spot-urine ratio is the right test for routine screening and tracking. A separate 24-hour or timed urine collection gives a more precise estimate when a result needs confirming, and the Kidney Panel pairs this ratio with serum creatinine and eGFR for a fuller assessment of kidney function.
Biomarkers tested
Includes 3 biomarkers
- Specimen
- Urine
- Measures
- Ratio
Urine creatinine tracks a waste product muscle breaks down at a steady rate, which makes it the reference point for judging whether a urine sample is concentrated or diluted. Labs use it to normalize other urine markers, most importantly albumin, into a ratio (ACR) that actually reflects kidney filtering rather than how much water you drank that morning. On its own it is rarely the number you care about, but pair it with albumin and it becomes one of the earliest ways to catch kidney strain from diabetes, high blood pressure, or high-protein training loads before symptoms show up.
- Specimen
- Urine
- Measures
- Mass concentration
Healthy kidneys hold onto albumin, filtering blood while keeping this protein out of urine. This test measures how much albumin leaks through, and even small amounts signal that the kidney's filtering barrier is starting to wear down, often years before creatinine or eGFR shift. It's a key early marker for diabetes and high blood pressure related kidney damage, so it's worth tracking as a baseline if you have either condition, a family history, or want to catch declining kidney function while it's still fully reversible.
- Specimen
- Urine
- Method
- High-sensitivity assay
- Measures
- Mass concentration
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Typical results in 1 day
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost — covering the lab and what it takes to run the service — never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9/mo, and you still pay the lab’s order fee. Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results post to your dashboard once your lab completes them, then a clinician reviews them and your full analysis and personalized action plan (with clear next steps) follow. Turnaround varies by test: specialty assays and at-home kits take longer, and each test shows its expected turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.
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