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Serum or plasma concentration of a specific protein marker measured by immunoassay (e.g., a marker for protein-related conditions or inflammation)

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

This test measures the amount of a particular protein in your blood, often used to help diagnose or monitor certain health conditions.

Quick summary

["This test helps doctors assess protein levels that may indicate underlying health issues."]

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

Key facts at a glance

LOINC
53007-1
Short code
ENA PM/SCL Ab Ser Ql IF
Synonyms
ENA PM/SCL 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 This Test Might Be Ordered

Your healthcare provider may recommend this test if they suspect conditions like kidney disease, liver problems, inflammation, or other metabolic disorders. It could also be part of routine monitoring for chronic conditions.

What to Expect Before the Test

You may need to fast for a certain period before this blood test, depending on the specific protein being measured. Follow your provider’s instructions carefully. Avoid alcohol and certain medications for the recommended time before testing.

How the Test Works

A small sample of your blood is drawn and sent to a lab. The lab uses an immunoassay method to detect and measure the protein concentration. This process is quick and typically requires minimal preparation beyond what your provider advises.

What the Results Mean

Results will show the concentration of the protein in your blood. Abnormal levels may suggest conditions like protein loss, organ dysfunction, or other health concerns. Your provider will interpret these results in the context of your overall health and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a critical role in diagnosing and managing various medical conditions by providing insights into protein levels that can reflect broader health statuses, such as kidney function, inflammation, or metabolic health. Elevated or low levels may prompt further testing or treatment adjustments.

Frequently asked questions

What does a high or low protein level in this test mean?
High or low levels can indicate different health issues. High levels might suggest conditions like multiple myeloma, severe dehydration, or certain liver diseases. Low levels could point to kidney problems, malnutrition, or other metabolic disorders. Your provider will discuss these findings with you.
How often should I get this test?
The frequency depends on your medical condition and your provider’s recommendations. Some people may need this test regularly, while others may only need it once or twice a year. Follow your healthcare team’s guidance.
Can I eat or drink anything before this test?
Yes, but follow your provider’s specific instructions. Typically, you may need to fast for a few hours before the test, but some tests allow for water. Avoid alcohol and certain medications as directed.
  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