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Microalbuminuria (Urinary Albumin-to-Creatinine Ratio)

Published: August 9, 2026Updated: August 16, 2026

This test measures small amounts of albumin, a protein, in your urine to check for early kidney damage or diabetes-related kidney issues.

Quick summary

["Early kidney or diabetes monitoring begins here."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
14036-8
Short code
D microceras IgE Qn
Synonyms
D microceras IgE Qn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Matters

Microalbuminuria helps detect kidney problems before they become serious. High levels may signal diabetes, high blood pressure, or other kidney conditions that need attention.

How It’s Done

A small urine sample is collected, often during a routine visit or at home. The sample is tested to compare albumin and creatinine levels.

What to Expect

No special preparation is needed, but you may be asked to avoid certain foods or drinks before testing. Results are usually ready within days.

What Results Mean

Results are interpreted in relation to your creatinine level. Elevated albumin relative to creatinine may indicate kidney strain, especially in people with diabetes or high blood pressure.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Microalbumin Test

Frequently asked questions

What causes microalbuminuria to rise?
Common causes include poorly controlled diabetes, high blood pressure, or kidney disease. Stress, infections, or certain medications may also temporarily affect results.
How often should I get this test?
Your doctor will determine frequency based on your health. People with diabetes or kidney risk factors may need it yearly or more often.
Can diet affect this test?
Yes—high-protein or high-sodium diets may temporarily increase albumin levels. Follow your doctor’s advice on diet before testing.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy