Test library
Random Urine Albumin Test
The albumin random urine with creatinine ratio test measures albumin relative to creatinine in a urine sample. It is a first-line screen for early kidney damage, especially in people with diabetes or high blood pressure.
Order Albumin, Random Urine with Creatinine Ratio
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Order Albumin, Random Urine with Creatinine Ratio- Typical turnaround
- 1-3 business days
- Starting price
- From $45
- Results
- Confidential, online
Quick answer
The albumin random urine with creatinine ratio test compares the amount of albumin in urine to the amount of creatinine. Albumin is a protein that should largely stay in the bloodstream, so higher amounts in urine can signal that the kidneys' filtering units are under stress. The ratio corrects for how dilute or concentrated the sample is, making a single random collection useful.
What this test measures
Albumin is the most abundant protein in blood, and healthy kidneys keep most of it from passing into urine. When the filtering units become damaged, small amounts of albumin can leak through. Measuring only albumin in a random urine sample can be misleading because hydration affects concentration; dividing by creatinine, which is released at a relatively steady rate, corrects for that variability.
The test requires a random urine sample, not a full-day collection. Results are expressed as a ratio and often grouped into categories such as normal, moderately increased, or severely increased albumin excretion. A mildly elevated result may be repeated or confirmed with a first-morning sample before it is treated as persistent.
Clinicians commonly order this test for people with diabetes, high blood pressure, or a family history of kidney disease, because early changes often produce no symptoms. It may also be used to monitor a known kidney condition or to evaluate swelling, unexplained protein in urine, or risk factors for cardiovascular and kidney problems.
- Urine albumin (microalbumin) concentration
- Urine creatinine concentration
- Albumin-to-creatinine ratio (ACR)
- Estimated albumin excretion rate
- Albuminuria category (normal, moderately increased, severely increased)
- Urine protein when included in the same order
- Serum creatinine and estimated glomerular filtration rate when paired
Why people order this test
- Screen for early kidney damage in diabetes
- Monitor kidney function in people with high blood pressure
- Evaluate small amounts of protein found on a routine urine test
- Track a known kidney condition over time
- Assess kidney risk before starting certain long-term treatments
- Investigate swelling or fluid retention with a provider
How to prepare
A random urine sample is collected at the laboratory, and no fasting is usually required. Some laboratories prefer a first-morning sample, so follow the collection instructions provided with the order. Avoid heavy exercise right before collection unless the laboratory says otherwise.
Understanding your results
Results are typically available within one to three business days. The report includes the albumin-to-creatinine ratio and may place it in a category. An elevated ratio can indicate kidney stress, but repeat testing and clinical context are needed before conclusions are drawn.
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Frequently Asked Questions
Why is creatinine measured with albumin?
Creatinine adjusts for how concentrated the urine is. The ratio gives a more reliable picture than albumin alone, especially in a single random sample.
Do I need to collect urine for a full day?
No. This test uses a random urine sample, although some laboratories prefer a first-morning collection for consistency.
Who usually needs this test?
It is commonly ordered for people with diabetes, high blood pressure, or other risk factors for kidney disease, and for monitoring an existing kidney condition.
What does an elevated ratio mean?
It can indicate that albumin is leaking through the kidneys. A single elevated result is often repeated, since temporary factors can raise the value.
Is fasting required?
Fasting is not usually required for a urine albumin-to-creatinine ratio. Follow the laboratory's collection instructions.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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