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Serum/plasma mass concentration of albumin

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

Albumin is a protein found in your blood that helps maintain fluid balance and supports immune function. Your doctor may order this test to check for conditions affecting protein levels, kidney function, or nutritional status.

Quick summary

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

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

Key facts at a glance

LOINC
79181-4
Short code
GH 15M p chal SerPl-aCnc
Synonyms
GH 15M p chal SerPl-aCnc
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

Doctors may order albumin testing to evaluate overall protein status, assess kidney function, or monitor conditions like chronic liver disease, malnutrition, or severe infections. It’s also sometimes checked during pregnancy or before surgery to ensure adequate protein reserves.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample (serum or plasma) via a simple venipuncture. If you’re on blood thinners, let your doctor know to avoid excessive bruising.

What the Results Mean

Results are compared to a general reference range, but exact values can vary by lab. Low albumin may indicate poor nutrition, liver or kidney disease, or inflammation. High levels could suggest dehydration or certain genetic conditions.

Common Conditions Linked to Albumin Levels

Low albumin is often seen in chronic kidney disease, liver cirrhosis, severe infections, or malnutrition. High albumin may be linked to dehydration or conditions like nephrotic syndrome (kidney disease causing protein loss).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Albumin Level

Frequently asked questions

Will I need to fast before this test?
No fasting is required for albumin testing. Blood is drawn at any time of day, so timing doesn’t affect results.
Can I take my medications before the blood draw?
Yes, you can take your usual medications. However, inform your doctor if you’re on blood thinners, as they may affect clotting during the draw.
What if my albumin level is outside the normal range?
If your results are low, your doctor may recommend dietary changes, further testing (like kidney function panels), or monitoring for conditions like liver disease. If high, they may investigate dehydration or other underlying causes.
  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