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Serum/plasma substance concentration for a specific protein marker (e.g., related to liver function or inflammation)

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

This test measures a protein in your blood that may help assess liver health, inflammation, or other metabolic processes.

Quick summary

["Understanding your protein levels can help doctors diagnose or monitor conditions like liver disease or immune responses."]

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

Key facts at a glance

LOINC
12684-7
Short code
LH sp9 p chal SerPl-sCnc
Synonyms
LH sp9 p chal SerPl-sCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
1.5
Ref high
9
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
83002
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 jaundice (yellowing skin), unexplained fatigue, or signs of liver issues. It could also be used to monitor conditions like chronic liver disease, inflammation, or metabolic disorders.

What to Expect During the Test

You’ll provide a blood sample, typically drawn from your arm. The sample is sent to a lab for analysis. No special preparation is usually needed, but check with your provider about timing around meals or medications.

Common Conditions Monitored

This test may be part of a broader evaluation for liver diseases (e.g., hepatitis, cirrhosis), chronic inflammation, or conditions affecting protein metabolism. It’s also used in research or specialized clinical settings for certain protein markers.

What the Results Mean

Results provide a quantitative measure of the protein’s concentration in your blood. Elevated or low levels may signal underlying health concerns, but interpretation depends on clinical context and other test results.

Reference range

Follicular: 1.5-9.0 mIU/mLN/A

Specimen: serum

For females: inform if menstrual cycle status. For certain tests, timing within menstrual cycle may matter.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Protein Markers in Blood Testing

Frequently asked questions

How often will I need this test?
Frequency depends on your health status and treatment plan. Some patients need it monthly, while others may only need it once or twice a year. Your provider will outline a schedule based on your needs.
What if my results are outside the expected range?
If results are abnormal, your provider will discuss them with you. They may recommend further testing, adjustments to treatment, or lifestyle changes to address potential concerns.
Can I eat or drink before this test?
Most blood tests, including this one, can be done on an empty stomach, but always confirm with your healthcare provider. Some protein-related tests may require fasting, while others do not.
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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