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Serum or plasma concentration of albumin by nephelometry

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

Albumin is a key protein in your blood that helps maintain fluid balance and supports immune function. Your doctor may check your albumin level to assess how well your kidneys are working or to monitor conditions like liver disease or malnutrition.

Quick summary

["Albumin helps keep fluids in your blood vessels and supports immune health; low levels may signal kidney or liver issues."]

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

Key facts at a glance

LOINC
49738-8
Short code
Hu Ab Ser Ql IF
Synonyms
Hu Ab Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 produced by your liver and circulates in your bloodstream. It plays a critical role in transporting nutrients, maintaining blood pressure, and supporting the immune system. Your albumin level can reflect overall health, especially in conditions like chronic kidney disease, liver disease, or severe infections.

What Can Affect Albumin Levels?

Several factors can influence your albumin level, including diet (low protein intake), chronic kidney disease, liver disease, severe infections, burns, or certain medications. Stress, pregnancy, or rapid weight changes may also play a role.

When Might You Need This Test?

Your doctor may order an albumin test to evaluate kidney function, monitor liver health, check for malnutrition, or assess the severity of conditions like sepsis or burns. It’s often included in routine blood panels or when symptoms like swelling, fatigue, or weight changes appear.

What to Expect Before the Test

No special preparation is usually needed for this test. You may have a blood sample drawn from a vein in your arm, similar to other routine blood tests. If you’re on certain medications or have a condition like diabetes, let your doctor know before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Albumin Level

Frequently asked questions

What are the normal results of this test?
Normal albumin levels can vary slightly by lab, but low levels (below typical reference ranges) may indicate problems like kidney disease, liver failure, or malnutrition. High levels might suggest dehydration or certain inflammatory conditions. Your doctor will interpret results in the context of your overall health and symptoms.
Can diet or medications affect albumin test results?
Yes, diet (especially protein intake), certain medications (like steroids or diuretics), and chronic illnesses can influence albumin levels. If you’re on long-term medications or have dietary restrictions, discuss them with your doctor before the test.
How often should I get this test?
The frequency depends on your health status. Your doctor may recommend this test periodically if you have conditions like kidney disease, liver disease, or if you’re recovering from a severe illness or injury. Follow their guidance for the best timing.
  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