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Serum or plasma concentration of albumin by nephelometry

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

This test measures the amount of albumin, a key protein in your blood that helps maintain fluid balance and supports immune function.

Quick summary

["Albumin levels help assess protein status and kidney function."]

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

Key facts at a glance

LOINC
32848-4
Short code
N men sg A+Y Ag Spec Ql
Synonyms
N men sg A+Y Ag Spec Ql
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 Albumin Levels Matter

Albumin is vital for keeping fluids in your blood vessels and transporting nutrients. Low levels may indicate malnutrition, liver disease, or kidney problems, while high levels could signal dehydration or certain medical conditions.

What Can Affect Albumin Levels?

Several factors can influence albumin levels, including diet, liver or kidney disease, chronic illness, or severe infections. Your doctor may also check albumin as part of a broader health assessment.

Common Reasons for Testing

Doctors often order albumin tests to evaluate protein status in patients with malnutrition, kidney disease, liver conditions, or after major surgeries. It may also be used in monitoring chronic illnesses like heart failure or sepsis.

What to Expect During the Test

This test typically involves drawing blood from a vein in your arm. The sample is then analyzed in a lab using nephelometry, a method that detects protein concentration by light scattering.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance of Albumin Levels

Short name

Albumin (Nephelometry)

Frequently asked questions

What are the normal reference ranges for albumin?
Reference ranges can vary by lab and individual health status. Your results will be compared to your specific baseline and clinical context, not a generic range. Your doctor will interpret the results in relation to your overall health.
How long does it take to get the results?
Test results are usually available within 24 to 48 hours, depending on lab processing times and your healthcare provider’s workflow. Follow-up with your doctor will determine when to discuss results.
Can diet or medications affect albumin levels?
Yes, diet high in protein or low in protein can impact albumin levels. Certain medications, like steroids or diuretics, may also influence results. Always inform your doctor about all medications or dietary changes 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