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Serum or plasma mass concentration of albumin

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

This test measures the amount of albumin, a protein found in your blood, which 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
29991-7
Short code
FSP Ser LA-mCnc
Synonyms
FSP Ser LA-mCnc
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
la
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 Is This Test Done?

Your healthcare provider may order this test to check for conditions affecting protein levels, such as malnutrition, liver disease, kidney problems, or certain infections. It can also help monitor treatment responses in patients with chronic illnesses.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re on blood thinners, let your provider know before the test.

What the Results Mean

Low albumin levels may indicate poor nutrition, liver disease, or kidney issues. High levels could suggest dehydration or certain medical conditions. Your results will be compared to standard reference ranges for your age and health status.

Common Conditions Linked to Albumin Levels

Abnormally low albumin is often seen in chronic kidney disease, liver cirrhosis, or severe infections. High levels might be linked to dehydration or conditions like multiple myeloma.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Albumin Level

Frequently asked questions

What causes low albumin levels?
Low albumin can result from conditions like kidney disease, liver problems, severe infections, or poor nutrition. It may also occur due to excessive protein loss (e.g., from burns or certain medications).
How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab. Your healthcare provider will discuss them with you during your follow-up visit.
Can diet affect albumin levels?
Yes, diet plays a role. Eating enough protein (from foods like lean meats, beans, and dairy) supports albumin production. Chronic malnutrition or excessive protein loss can lower levels, while balanced diets may help maintain normal levels.
  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