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Albumin in Serum (24-Hour Collection)

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

This test measures the amount of albumin, a protein found in your blood, that appears in your urine over a 24-hour period. It helps check for early kidney damage or kidney disease.

Quick summary

["Albumin in urine can signal kidney problems, even when blood tests seem normal."]

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

Key facts at a glance

LOINC
58734-5
Short code
Collect Date Amn
Synonyms
Collect Date Amn
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 Is Done

Your doctor may recommend this test if you have symptoms like swelling, frequent urination, or high blood pressure. It’s also used to monitor kidney function in people with diabetes or high blood pressure, as these conditions can damage kidneys over time.

What to Expect Before the Test

You’ll collect all your urine for 24 hours in a special container provided by your lab. Drink plenty of fluids to help your urine flow normally, but avoid excessive caffeine or alcohol. Report any changes in urine color or consistency to your doctor.

How the Test Works

The collected urine is tested in a lab to measure albumin levels. This helps determine if your kidneys are letting too much protein pass into your urine, which can indicate kidney damage.

What the Results Mean

Higher-than-normal albumin in urine may mean your kidneys are not working as well as they should. Your doctor will discuss the results with you and may recommend further tests or changes to your treatment plan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Albuminuria (Albumin in Urine) is an early sign of kidney damage. It can occur in conditions like diabetes, high blood pressure, or other kidney diseases. Detecting it early allows for better management and prevention of kidney problems.

Short name

Albumin Urine Test (24h)

Frequently asked questions

How often will I need this test?
Your doctor will tell you how often to repeat this test based on your health condition. Some people need it yearly, while others may need it more frequently if they have ongoing kidney concerns.
Can I take medications before collecting my urine sample?
Yes, but avoid over-the-counter pain relievers like ibuprofen or naproxen, as they can affect kidney function. Always check with your doctor or lab technician before taking any medications.
Will I need to fast before this test?
No fasting is required for this test. Drink water as usual, but avoid excessive fluids that might dilute the urine sample too much.
  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