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Serum or plasma mass concentration of a specific protein (e.g., a marker related to kidney function or inflammation)

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

This test measures the amount of a particular protein in your blood, often used to check kidney function, detect inflammation, or monitor certain conditions.

Quick summary

["Helps diagnose or track kidney issues, inflammation, or other health conditions by assessing protein levels in your blood."]

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

Key facts at a glance

LOINC
56256-1
Short code
Eggplant IgG4-mCnc
Synonyms
Eggplant IgG4-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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 Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like swelling, fatigue, or signs of kidney problems. It could also be used to monitor conditions like chronic kidney disease, certain infections, or autoimmune disorders.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it involves drawing blood. Avoid strenuous activity or certain medications that could affect results.

How the Test Is Performed

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but the process is quick. The blood sample is then sent to a lab for analysis.

What the Results Mean

Results are compared to standard ranges for your age and health status. High or low levels may signal underlying issues, but interpretation depends on your medical history and symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Protein mass concentration test

Frequently asked questions

What causes abnormal protein levels in this test?
Abnormal results may stem from kidney disease, infections, autoimmune disorders, or conditions affecting protein production (e.g., liver disease). Your provider will consider your full medical picture to determine the cause.
How often should I get this test?
Frequency depends on your health condition. Routine tests may be ordered annually or more often if you have chronic kidney disease, diabetes, or another condition requiring monitoring.
Can diet or medications affect this test?
Certain foods (e.g., high-protein diets) or medications (e.g., NSAIDs) may influence protein levels. Always inform your provider about all medications or supplements you take 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