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Serum or plasma concentration of total protein by nephelometry

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

This test measures the amount of protein in your blood, which helps assess overall protein levels in your serum or plasma.

Quick summary

["Total protein levels can indicate hydration status, liver function, or kidney health."]

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

Key facts at a glance

LOINC
110142-7
Short code
S pneum Da 8 Ab Msmt Ser
Synonyms
S pneum Da 8 Ab Msmt Ser
Category
coagulation
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 Is This Test Done?

Your healthcare provider may order this test to check for conditions like dehydration, liver disease, kidney problems, or malnutrition. It can also help diagnose or monitor certain medical conditions, such as protein-losing disorders or inflammatory diseases.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if it involves blood collection, but this depends on your specific test order. Drink plenty of water unless instructed otherwise.

What Happens During the Test?

A small needle will be inserted into your arm to draw blood. You may feel a brief pinch, but it usually doesn’t cause significant discomfort. The blood sample is then sent to a lab for analysis.

What Are Possible Results?

Results are typically reported in grams per deciliter (g/dL). Higher or lower than expected levels may signal underlying health concerns that need further evaluation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Total Protein

Frequently asked questions

What does a normal range mean for this test?
A 'normal' range is based on general guidelines, but your specific results will be compared to your body’s unique needs. Your healthcare provider will explain what your results mean for you.
How often should I get this test?
Your provider will determine how often you need this test based on your health status and any ongoing conditions. Follow their advice for scheduling.
Can diet or medications affect this test result?
Certain foods, medications, or medical conditions—like kidney or liver disease—can influence protein levels. Always inform your provider about any 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