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Microalbumin (Urine)

Organ Function & Health

99.00

The Microalbumin (Urine) test detects small amounts of albumin in urine. It helps identify early kidney damage before routine tests become abnormal.

Turnaround time

1-2 days

Biomarkers count

1

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UKAS Accredited Labs

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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.

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Details about Microalbumin (Urine)

What is the Microalbumin (Urine) test?

The Microalbumin (Urine) test measures low levels of albumin, a protein that should normally remain in the bloodstream. When the kidney’s filtering units (glomeruli) are damaged, small amounts of albumin begin to leak into the urine.

This test is designed to detect early-stage kidney damage, often before changes are seen in blood kidney markers such as creatinine or eGFR. It is more sensitive than standard urine protein testing and is commonly used as an early warning marker.

Microalbumin testing is a key tool in preventive kidney and cardiovascular care.

Why do I need a Microalbumin (Urine) test?

Early kidney damage is often silent and may progress without symptoms. Testing allows early intervention to slow or prevent progression.

You may need this test if you:

Have diabetes
Have high blood pressure
Have cardiovascular disease
Have a family history of kidney disease
Have metabolic syndrome
Are monitoring known kidney impairment
Have abnormal blood sugar or blood pressure control
Want proactive kidney health screening

The test helps identify kidney stress at a stage where changes may still be reversible.

Benefits of the test

Detects early kidney damage
Identifies changes before symptoms appear.
Essential in diabetes monitoring
Standard screening for diabetic kidney disease.
Supports blood pressure management
Detects kidney effects of hypertension.
More sensitive than standard urine protein tests
Identifies low-level albumin leakage.
Non-invasive testing
Requires only a urine sample.
Useful for long-term monitoring
Tracks kidney health over time.
Improves cardiovascular risk assessment
Albuminuria is linked to heart risk.
Widely recommended in clinical guidelines
Core kidney screening marker.

Step-by-step: How we offer testing

Clinic-based testing (UK-wide)

Choose your nearest UK clinic
Provide a urine sample
Sample sent to the laboratory
Results are issued once analysis is complete

Home or hotel collection (+£60, UK-wide)

Urine collection kit provided
Sample collected at home or hotel
Sample returned for laboratory analysis

Your results explained

Normal

No significant albumin detected
UK standard (typical): <20 mg/L
Suggests normal kidney filtration

Moderately increased (microalbuminuria)

Small amount of albumin present
UK standard (typical): 20–200 mg/L
Indicates early kidney damage

High (macroalbuminuria)

Significant albumin leakage
UK standard: >200 mg/L
Suggests more advanced kidney involvement

Results may also be reported as an albumin/creatinine ratio for improved accuracy.

How It Works

Simple steps to get your results

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Book Online

Choose your test online and book in seconds. Select your preferred clinic location or home visit option.

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Visit or Test at Home

Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.

3

Get Your Results

Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.

Take control of your health with London Blood Tests

How to Prepare for Your Test

Follow these guidelines for accurate results

Sample Timing

Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.

Fasting & Hydration

Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.

Medications & Supplements

Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.

Hormones & Menstrual Cycle

For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.

If you have any questions or special circumstances, our team is happy to advise before your appointment.

Frequently Asked Questions

Early leakage of protein from the kidneys.

Yes, it is a key screening test.

Intense exercise may temporarily raise albumin levels.

Often yes, to reduce variability.

Concentrated urine may influence readings.

No, it is more sensitive.

Yes, early changes can improve with management.

Yes, repeat testing tracks progression.

Yes, albuminuria is associated with cardiovascular risk.

It indicates early kidney damage and supports further medical evaluation.