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Choose collection locationUrine Studies · Individual laboratory test
This entry is specifically the 24-hour urine albumin-to-creatinine ratio. It evaluates urine albumin in the context of urine creatinine over a timed collection.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called 24-Hr Albumin/Creatinine Ratio
A clinician may request this timed ratio to investigate urinary albumin loss. Use the specified 24-hour method when comparing it with a previous timed result.
This order uses urine collected over 24 hours. The ratio relates albumin to creatinine in the same collection.
A repeat specimen helps establish whether the loss is persistent.
Before your sample
Use the container supplied for the timed order. Discard the first urine, note the time, then collect every specimen through the final urine at the same time the next day. Ask about storage.
Collect urine across the 24-hour period specified by the laboratory. Record the start and finish times. If any urine is missed, let the team know before returning the container.
Smart Report
24 hoursLaboratory turnaround
Both completeness of collection and temporary illness can influence the finding. The clinician may compare it with kidney filtration and repeat urine results.
From sample to follow-up

Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationLook for Albumin / Creatinine Ratio, 24 Hrs Urine in your report. Use the sample type and collection time when comparing it with an earlier report.
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Check that your report identifies a 24-hour collection and give the clinician exact times and any missed portions.
Patient questions
This order specifies a full 24-hour collection. A spot urine albumin-to-creatinine ratio is a separate catalogue item and may answer a different referral.
Microalbuminuria means a small but real amount of albumin is leaking into the urine. It is the earliest routinely detectable sign of kidney involvement in diabetes and high blood pressure, and the stage at which treatment can often slow or reverse the process. It points towards kidney stress rather than proving disease, so your doctor confirms it on a repeat sample.
Because albumin in the urine is one of the earliest signs of kidney damage and often appears before blood tests such as creatinine change. In people with diabetes, high blood pressure or a family history of kidney disease, finding this leak early gives time to protect the kidneys while the change is still reversible.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.