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Choose collection locationUrine Studies · Individual laboratory test
This 24-hour urine test measures albumin lost across an entire collection period. It can help evaluate small amounts of kidney protein leakage.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called 24-Hr Urine Microalbumin
A full-day albumin measurement can help investigate kidney filter damage or clarify earlier urine findings. The entire collection period contributes to the answer.
This order measures the albumin excreted across the full 24-hour collection period.
The clinician may request a urine albumin-to-creatinine ratio to account for urine concentration.
Before your sample
For the timed sample, discard the starting urine and note its time. Collect all urine that follows, including overnight and the final void at the same time next day. Keep the container as the laboratory instructs.
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
An increase can signal albumin leakage, but recent exercise or illness can also affect the result. Completeness matters when interpreting a daily total.
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 Microalbumin, 24 Hrs. Urine in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Review the full-day collection record with the result and ask whether illness, exercise or incomplete collection could affect the comparison.
Patient questions
Missing part of the 24 hours may make albumin loss appear lower than it was. The team can advise whether the collection should be repeated.
Long-standing high blood pressure strains the kidney's filters, and a small albumin leak is one of the earliest visible signs of that strain. The finding is also used in assessing cardiovascular risk in people with hypertension, so it can prompt your doctor to tighten blood pressure control at a stage where the change can still be slowed.
A complete 24-hour collection measures how much albumin you pass in a day. For routine monitoring, clinicians usually use a spot urine albumin-to-creatinine ratio instead. An abnormal spot result does not automatically mean you need a 24-hour collection. Ask which type your clinician wants you to repeat.
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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.